Buy from Amazon
$46.60 $12.16
$50.00
$40.00
$30.00
$20.00
Jul
Sep
Nov
Jan
Mar
May
Jul
Sep
Nov
Jan
Mar
May
2015
2016
$37.30, May 28 - Jun 12 $36.85, May 28 - Jun 12 $32.79, May 28 - Jun 12 $37.42, Jun 13 - Jul 7 $36.85, Jun 14 - Jul 15 $32.78, Jun 14 - Jun 17 $37.42, Jun 13 - Jul 7 $36.85, Jun 14 - Jul 15 $32.79, Jun 17 - Jun 29 $37.42, Jun 13 - Jul 7 $36.85, Jun 14 - Jul 15 $33.39, Jun 30 - Jul 2 $37.42, Jun 13 - Jul 7 $36.85, Jun 14 - Jul 15 $33.38, Jul 3 - Aug 8 $37.54, Jul 8 - Jul 16 $36.85, Jun 14 - Jul 15 $33.38, Jul 3 - Aug 8 $37.66, Jul 17 - Jul 27 $33.38, Jul 3 - Aug 8 $32.54, Jul 17 8:38 pm $37.66, Jul 17 - Jul 27 $33.38, Jul 3 - Aug 8 $32.49, Jul 19 3:16 am $37.66, Jul 17 - Jul 27 $33.38, Jul 3 - Aug 8 $32.41, Jul 21 3:57 am $37.66, Jul 17 - Jul 27 $33.38, Jul 3 - Aug 8 $32.37, Jul 22 1:32 pm $37.66, Jul 17 - Jul 27 $33.38, Jul 3 - Aug 8 $32.30, Jul 24 8:04 am $37.66, Jul 17 - Jul 27 $33.38, Jul 3 - Aug 8 $32.17, Jul 27 12:17 am $37.78, Jul 28 - Aug 6 $33.38, Jul 3 - Aug 8 $32.11, Jul 28 1:02 am $37.78, Jul 28 - Aug 6 $33.38, Jul 3 - Aug 8 $32.03, Jul 29 7:22 pm $37.78, Jul 28 - Aug 6 $33.38, Jul 3 - Aug 8 $31.98, Jul 31 4:24 pm $37.78, Jul 28 - Aug 6 $33.38, Jul 3 - Aug 8 $31.95, Aug 2 11:15 am $37.78, Jul 28 - Aug 6 $33.38, Jul 3 - Aug 8 $31.93, Aug 3 - Aug 4 $37.78, Jul 28 - Aug 6 $33.38, Jul 3 - Aug 8 $31.84, Aug 6 11:49 am $37.90, Aug 7 - Aug 16 $33.38, Jul 3 - Aug 8 $31.76, Aug 8 11:07 am $37.90, Aug 7 - Aug 16 $31.71, Aug 10 - Aug 11 $31.67, Aug 10 11:51 am $37.90, Aug 7 - Aug 16 $33.38, Aug 12 - Sep 5 $24.93, Aug 12 9:39 am $37.90, Aug 7 - Aug 16 $33.38, Aug 12 - Sep 5 $24.89, Aug 13 8:59 am $37.90, Aug 7 - Aug 16 $33.38, Aug 12 - Sep 5 $24.85, Aug 14 - Aug 15 $38.02, Aug 17 - Aug 24 $33.38, Aug 12 - Sep 5 $24.82, Aug 16 - Aug 17 $38.02, Aug 17 - Aug 24 $33.38, Aug 12 - Sep 5 $24.78, Aug 19 12:14 pm $38.02, Aug 17 - Aug 24 $33.38, Aug 12 - Sep 5 $24.73, Aug 21 1:58 pm $38.02, Aug 17 - Aug 24 $33.38, Aug 12 - Sep 5 $24.71, Aug 22 1:02 pm $38.02, Aug 17 - Aug 24 $33.38, Aug 12 - Sep 5 $24.67, Aug 24 4:02 pm $38.13, Aug 25 - Sep 1 $33.38, Aug 12 - Sep 5 $24.63, Aug 26 6:21 pm $38.13, Aug 25 - Sep 1 $33.38, Aug 12 - Sep 5 $24.61, Aug 27 10:16 pm $38.13, Aug 25 - Sep 1 $33.38, Aug 12 - Sep 5 $24.60, Aug 29 - Aug 30 $38.13, Aug 25 - Sep 1 $33.38, Aug 12 - Sep 5 $24.56, Sep 1 12:06 pm $38.24, Sep 2 - Sep 8 $33.38, Aug 12 - Sep 5 $24.53, Sep 2 5:10 pm $38.24, Sep 2 - Sep 8 $33.38, Aug 12 - Sep 5 $24.47, Sep 5 2:46 am $38.24, Sep 2 - Sep 8 $33.35, Sep 6 6:46 am $24.44, Sep 6 6:46 am $38.24, Sep 2 - Sep 8 $33.28, Sep 8 3:27 pm $24.39, Sep 8 3:27 pm $39.00, Sep 9 - Sep 17 $33.38, Sep 9 - Oct 19 $24.38, Sep 9 9:00 pm $39.00, Sep 9 - Sep 17 $33.38, Sep 9 - Oct 19 $24.98, Sep 12 - Sep 13 $39.00, Sep 9 - Sep 17 $33.38, Sep 9 - Oct 19 $24.92, Sep 15 12:56 pm $39.00, Sep 9 - Sep 17 $33.38, Sep 9 - Oct 19 $24.88, Sep 17 2:26 pm $39.78, Sep 19 - Sep 24 $33.38, Sep 9 - Oct 19 $24.83, Sep 19 4:29 pm $39.78, Sep 19 - Sep 24 $33.38, Sep 9 - Oct 19 $24.77, Sep 22 11:50 am $39.78, Sep 19 - Sep 24 $33.38, Sep 9 - Oct 19 $24.75, Sep 24 10:03 am $39.99, Sep 26 - Dec 5 $33.38, Sep 9 - Oct 19 $24.72, Sep 26 10:49 am $39.99, Sep 26 - Dec 5 $33.38, Sep 9 - Oct 19 $24.66, Sep 28 11:45 am $39.99, Sep 26 - Dec 5 $33.38, Sep 9 - Oct 19 $24.61, Sep 30 12:11 pm $39.99, Sep 26 - Dec 5 $33.38, Sep 9 - Oct 19 $24.56, Oct 2 3:16 pm $39.99, Sep 26 - Dec 5 $33.38, Sep 9 - Oct 19 $24.53, Oct 4 5:34 pm $39.99, Sep 26 - Dec 5 $33.38, Sep 9 - Oct 19 $24.48, Oct 6 - Oct 8 $39.99, Sep 26 - Dec 5 $33.38, Sep 9 - Oct 19 $24.46, Oct 10 10:31 pm $39.99, Sep 26 - Dec 5 $33.38, Sep 9 - Oct 19 $24.44, Oct 13 1:35 am $39.99, Sep 26 - Dec 5 $33.38, Sep 9 - Oct 19 $24.39, Oct 15 3:28 am $39.99, Sep 26 - Dec 5 $33.38, Sep 9 - Oct 19 $24.37, Oct 17 8:55 am $39.99, Sep 26 - Dec 5 $33.38, Sep 9 - Oct 19 $24.30, Oct 19 1:22 pm $39.99, Sep 26 - Dec 5 $36.26, Oct 21 6:25 pm $33.36, Oct 21 6:25 pm $39.99, Sep 26 - Dec 5 $33.15, Oct 24 1:58 am $32.86, Oct 24 1:58 am $39.99, Sep 26 - Dec 5 $32.76, Oct 29 11:23 pm $32.25, Oct 29 11:23 pm $39.99, Sep 26 - Dec 5 $32.37, Nov 4 11:52 am $32.19, Nov 4 11:52 am $39.99, Sep 26 - Dec 5 $33.21, Nov 10 7:15 pm $31.24, Nov 10 7:15 pm $39.99, Sep 26 - Dec 5 $32.91, Nov 16 12:43 am $30.58, Nov 16 12:43 am $39.99, Sep 26 - Dec 5 $32.66, Nov 19 3:14 am $30.21, Nov 19 3:14 am $39.99, Sep 26 - Dec 5 $33.21, Nov 21 6:16 am $29.94, Nov 21 6:16 am $39.99, Sep 26 - Dec 5 $33.03, Nov 23 7:05 am $29.73, Nov 23 7:05 am $39.99, Sep 26 - Dec 5 $32.82, Nov 25 11:34 am $29.44, Nov 25 11:34 am $39.99, Sep 26 - Dec 5 $32.69, Nov 27 8:19 am $29.27, Nov 27 8:19 am $39.99, Sep 26 - Dec 5 $32.52, Nov 29 6:27 am $28.98, Nov 29 6:27 am $39.99, Sep 26 - Dec 5 $32.34, Dec 1 6:08 am $25.44, Dec 1 6:08 am $39.99, Sep 26 - Dec 5 $33.36, Dec 3 4:47 am $25.25, Dec 3 4:47 am $39.99, Sep 26 - Dec 5 $33.18, Dec 5 2:28 am $24.96, Dec 5 2:28 am $39.79, Dec 7 - Dec 11 $33.03, Dec 7 12:04 am $24.71, Dec 7 12:04 am $39.79, Dec 7 - Dec 11 $32.82, Dec 9 1:33 am $24.42, Dec 9 1:33 am $39.79, Dec 7 - Dec 11 $32.67, Dec 11 6:00 am $24.18, Dec 11 6:00 am $40.18, Dec 13 - Dec 17 $32.49, Dec 13 5:19 am $23.90, Dec 13 5:19 am $40.18, Dec 13 - Dec 17 $32.31, Dec 15 3:29 am $23.64, Dec 15 3:29 am $40.18, Dec 13 - Dec 17 $32.16, Dec 17 2:54 am $23.39, Dec 17 2:54 am $40.58, Dec 21 11:02 pm $31.77, Dec 21 11:02 pm $22.84, Dec 21 11:02 pm $41.80, Jan 11 - Jan 22 $29.91, Jan 12 9:05 am $20.16, Jan 12 9:05 am $41.80, Jan 11 - Jan 22 $29.82, Jan 13 9:28 pm $20.03, Jan 13 9:28 pm $41.80, Jan 11 - Jan 22 $29.67, Jan 15 2:30 pm $19.77, Jan 15 2:30 pm $41.80, Jan 11 - Jan 22 $29.49, Jan 17 12:02 pm $19.49, Jan 17 12:02 pm $41.80, Jan 11 - Jan 22 $29.36, Jan 19 2:56 am $19.27, Jan 19 2:56 am $41.80, Jan 11 - Jan 22 $33.38, Jan 20 - Feb 21 $19.18, Jan 20 6:00 pm $41.80, Jan 11 - Jan 22 $33.38, Jan 20 - Feb 21 $19.09, Jan 22 8:22 am $42.21, Jan 23 - Jan 29 $33.38, Jan 20 - Feb 21 $19.03, Jan 23 10:44 pm $42.21, Jan 23 - Jan 29 $33.38, Jan 20 - Feb 21 $31.51, Jan 27 7:57 am $42.21, Jan 23 - Jan 29 $36.75, Jan 29 12:48 am $33.38, Jan 20 - Feb 21 $42.63, Jan 30 - Feb 5 $33.38, Jan 20 - Feb 21 $31.51, Jan 30 7:05 pm $42.63, Jan 30 - Feb 5 $36.67, Feb 1 1:48 pm $33.38, Jan 20 - Feb 21 $42.63, Jan 30 - Feb 5 $36.61, Feb 3 10:16 am $33.38, Jan 20 - Feb 21 $42.63, Jan 30 - Feb 5 $36.55, Feb 5 4:13 am $33.38, Jan 20 - Feb 21 $43.05, Feb 6 - Feb 14 $36.53, Feb 6 10:52 pm $33.38, Jan 20 - Feb 21 $43.05, Feb 6 - Feb 14 $36.51, Feb 8 6:04 pm $33.38, Jan 20 - Feb 21 $43.05, Feb 6 - Feb 14 $33.38, Jan 20 - Feb 21 $31.51, Feb 10 1:04 pm $43.05, Feb 6 - Feb 14 $36.47, Feb 12 8:45 am $33.38, Jan 20 - Feb 21 $43.05, Feb 6 - Feb 14 $36.43, Feb 14 3:56 am $33.38, Jan 20 - Feb 21 $43.48, Feb 16 - Feb 19 $36.39, Feb 16 12:30 am $33.38, Jan 20 - Feb 21 $43.48, Feb 16 - Feb 19 $36.31, Feb 17 10:39 pm $33.38, Jan 20 - Feb 21 $43.48, Feb 16 - Feb 19 $36.23, Feb 19 8:16 pm $33.38, Jan 20 - Feb 21 $43.91, Feb 21 - Mar 5 $36.15, Feb 21 6:06 pm $33.38, Jan 20 - Feb 21 $43.91, Feb 21 - Mar 5 $35.68, Feb 23 4:07 pm $33.71, Feb 23 4:07 pm $43.91, Feb 21 - Mar 5 $36.01, Feb 25 1:49 pm $35.65, Feb 25 1:49 pm $43.91, Feb 21 - Mar 5 $35.93, Feb 27 12:07 pm $35.73, Feb 27 - Mar 5 $43.91, Feb 21 - Mar 5 $36.55, Mar 1 11:05 am $35.73, Feb 27 - Mar 5 $43.91, Feb 21 - Mar 5 $41.35, Mar 3 2:43 pm $35.73, Feb 27 - Mar 5 $43.91, Feb 21 - Mar 5 $39.90, Mar 5 6:31 pm $35.73, Feb 27 - Mar 5 $44.35, Mar 7 - Mar 12 $39.77, Mar 7 7:05 pm $35.62, Mar 7 7:05 pm $44.35, Mar 7 - Mar 12 $39.61, Mar 9 8:57 pm $35.47, Mar 9 8:57 pm $44.35, Mar 7 - Mar 12 $39.49, Mar 12 5:38 am $35.29, Mar 12 5:38 am $44.79, Mar 14 - Mar 20 $39.38, Mar 14 12:48 pm $35.08, Mar 14 12:48 pm $44.79, Mar 14 - Mar 20 $34.94, Mar 17 10:11 am $34.71, Mar 17 10:11 am $44.79, Mar 14 - Mar 20 $34.41, Mar 20 8:46 pm $32.52, Mar 20 8:46 pm $45.23, Mar 23 - Mar 27 $34.20, Mar 23 5:04 am $32.42, Mar 23 5:04 am $45.23, Mar 23 - Mar 27 $33.99, Mar 25 11:36 am $32.28, Mar 25 11:36 am $45.23, Mar 23 - Mar 27 $33.78, Mar 27 6:37 pm $32.14, Mar 27 6:37 pm $45.49, Mar 30 - Apr 24 $33.57, Mar 30 3:09 am $31.98, Mar 30 3:09 am $45.49, Mar 30 - Apr 24 $33.36, Apr 1 1:02 pm $31.90, Apr 1 1:02 pm $45.49, Mar 30 - Apr 24 $33.12, Apr 4 5:02 am $31.74, Apr 4 5:02 am $45.49, Mar 30 - Apr 24 $32.88, Apr 6 8:25 pm $31.58, Apr 6 8:25 pm $45.49, Mar 30 - Apr 24 $32.67, Apr 9 1:18 pm $31.50, Apr 9 1:18 pm $45.49, Mar 30 - Apr 24 $32.28, Apr 13 7:33 pm $31.34, Apr 13 7:33 pm $45.49, Mar 30 - Apr 24 $32.07, Apr 16 12:27 pm $31.24, Apr 16 12:27 pm $45.49, Mar 30 - Apr 24 $31.86, Apr 19 5:22 am $31.16, Apr 19 5:22 am $45.49, Mar 30 - Apr 24 $31.74, Apr 20 1:20 pm $31.10, Apr 20 1:20 pm $45.49, Mar 30 - Apr 24 $31.62, Apr 21 10:51 pm $30.98, Apr 21 10:51 pm $45.49, Mar 30 - Apr 24 $31.35, Apr 24 6:27 pm $30.85, Apr 24 6:27 pm $45.49, Apr 27 - Jun 27 $31.08, Apr 27 5:48 pm $30.61, Apr 27 5:48 pm $45.49, Apr 27 - Jun 27 $30.87, Apr 30 2:07 pm $30.46, Apr 30 2:07 pm $45.49, Apr 27 - Jun 27 $30.66, May 3 6:34 am $30.22, May 3 6:34 am $45.49, Apr 27 - Jun 27 $30.42, May 6 1:11 am $30.04, May 6 1:11 am $45.49, Apr 27 - Jun 27 $29.83, May 10 6:58 am $19.94, May 10 6:58 am $45.49, Apr 27 - Jun 27 $19.54, May 13 10:35 am $19.51, May 13 - May 17 $45.49, Apr 27 - Jun 27 $19.51, May 13 - May 17 $19.41, May 17 12:19 am $45.49, Apr 27 - Jun 27 $19.39, May 21 10:30 am $19.36, May 21 10:30 am $45.49, Apr 27 - Jun 27 $19.27, May 25 11:37 am $19.22, May 25 11:37 am $45.49, Apr 27 - Jun 27 $22.37, May 29 11:15 pm $19.00, May 29 11:15 pm $45.49, Apr 27 - Jun 27 $21.98, Jun 3 2:36 pm $18.84, Jun 3 2:36 pm $45.49, Apr 27 - Jun 27 $21.59, Jun 8 2:30 am $18.52, Jun 8 - Jul 5 $45.49, Apr 27 - Jun 27 $21.26, Jun 12 12:50 am $18.52, Jun 8 - Jul 5 $45.49, Apr 27 - Jun 27 $20.96, Jun 15 7:29 pm $18.52, Jun 8 - Jul 5 $45.49, Apr 27 - Jun 27 $20.69, Jun 19 2:20 pm $18.52, Jun 8 - Jul 5 $45.49, Apr 27 - Jun 27 $20.36, Jun 23 8:10 am $18.52, Jun 8 - Jul 5 $45.49, Apr 27 - Jun 27 $20.06, Jun 27 3:07 am $18.52, Jun 8 - Jul 5 $44.11, Jul 1 - Jul 5 $19.76, Jul 1 4:52 am $18.52, Jun 8 - Jul 5 $44.11, Jul 1 - Jul 5 $19.40, Jul 5 11:34 am $18.52, Jun 8 - Jul 5 $40.58, Jul 11 2:11 pm $18.92, Jul 11 2:11 pm $18.48, Jul 11 2:11 pm $38.09, Jul 15 - Jul 18 $18.62, Jul 15 7:08 am $18.46, Jul 15 - Jul 18 $38.09, Jul 15 - Jul 18 $33.99, Jul 18 7:45 pm $18.46, Jul 15 - Jul 18 $37.74, Jul 22 - Jul 25 $33.69, Jul 22 10:12 am $18.42, Jul 22 10:12 am $37.74, Jul 22 - Jul 25 $33.39, Jul 25 11:20 pm $18.44, Jul 25 11:20 pm $36.00, Jul 29 - Aug 2 $31.93, Jul 29 12:23 pm $18.52, Jul 29 - Aug 9 $36.00, Jul 29 - Aug 2 $31.60, Aug 2 2:08 am $18.52, Jul 29 - Aug 9 $37.26, Aug 5 5:10 pm $31.30, Aug 5 5:10 pm $18.52, Jul 29 - Aug 9 $36.57, Aug 9 - Aug 13 $31.05, Aug 9 11:48 am $18.52, Jul 29 - Aug 9 $36.57, Aug 9 - Aug 13 $30.75, Aug 13 6:18 am $25.57, Aug 13 6:18 am $37.07, Aug 17 - Aug 28 $30.42, Aug 17 12:11 am $25.31, Aug 17 12:11 am $37.07, Aug 17 - Aug 28 $33.68, Aug 20 - Aug 31 $25.17, Aug 20 6:27 pm $37.07, Aug 17 - Aug 28 $33.68, Aug 20 - Aug 31 $24.64, Aug 24 11:26 am $37.07, Aug 17 - Aug 28 $33.68, Aug 20 - Aug 31 $24.08, Aug 28 6:41 am $37.69, Aug 31 - Sep 12 $33.68, Aug 20 - Aug 31 $23.59, Aug 31 11:20 pm $37.69, Aug 31 - Sep 12 $34.05, Sep 4 - Sep 28 $23.11, Sep 4 8:11 pm $37.69, Aug 31 - Sep 12 $34.05, Sep 4 - Sep 28 $22.47, Sep 8 6:12 pm $37.69, Aug 31 - Sep 12 $34.05, Sep 4 - Sep 28 $21.88, Sep 12 3:01 pm $38.31, Sep 16 - Sep 24 $34.05, Sep 4 - Sep 28 $21.38, Sep 16 12:26 pm $38.31, Sep 16 - Sep 24 $34.05, Sep 4 - Sep 28 $20.84, Sep 20 9:22 am $38.31, Sep 16 - Sep 24 $34.05, Sep 4 - Sep 28 $20.34, Sep 24 7:58 am $38.92, Sep 28 - Oct 2 $34.05, Sep 4 - Sep 28 $19.78, Sep 28 5:05 am $38.92, Sep 28 - Oct 2 $34.31, Oct 2 6:15 am $19.24, Oct 2 6:15 am $39.53, Oct 6 - Oct 10 $34.56, Oct 6 - Oct 14 $18.61, Oct 6 8:32 am $39.53, Oct 6 - Oct 10 $34.56, Oct 6 - Oct 14 $17.96, Oct 10 12:13 pm $41.70, Oct 14 - Oct 18 $34.56, Oct 6 - Oct 14 $17.19, Oct 14 11:48 am $41.70, Oct 14 - Oct 18 $34.84, Oct 18 - Nov 22 $16.70, Oct 18 8:13 am $44.19, Oct 22 - Oct 30 $34.84, Oct 18 - Nov 22 $16.09, Oct 22 5:39 am $44.19, Oct 22 - Oct 30 $34.84, Oct 18 - Nov 22 $15.47, Oct 26 2:08 am $44.19, Oct 22 - Oct 30 $34.84, Oct 18 - Nov 22 $29.36, Oct 30 1:15 am $43.74, Nov 3 - Nov 7 $34.84, Oct 18 - Nov 22 $29.12, Nov 3 12:46 am $43.74, Nov 3 - Nov 7 $34.84, Oct 18 - Nov 22 $28.48, Nov 7 3:31 am $43.30, Nov 11 - Nov 13 $34.84, Oct 18 - Nov 22 $27.82, Nov 11 6:28 am $43.30, Nov 11 - Nov 13 $34.84, Oct 18 - Nov 22 $27.49, Nov 13 8:48 am $43.86, Nov 17 - Nov 26 $34.84, Oct 18 - Nov 22 $26.79, Nov 17 3:44 pm $43.86, Nov 17 - Nov 26 $34.84, Oct 18 - Nov 22 $26.14, Nov 22 1:00 am $43.86, Nov 17 - Nov 26 $39.45, Nov 26 11:48 am $25.73, Nov 26 11:48 am $44.42, Dec 1 - Dec 6 $34.84, Dec 1 - Dec 6 $25.18, Dec 1 8:04 am $44.42, Dec 1 - Dec 6 $34.84, Dec 1 - Dec 6 $24.48, Dec 6 5:33 am $44.97, Dec 11 8:01 am $39.98, Dec 11 - Dec 21 $23.74, Dec 11 8:01 am $45.52, Dec 16 - Dec 21 $39.98, Dec 11 - Dec 21 $23.30, Dec 16 9:04 am $45.52, Dec 16 - Dec 21 $39.98, Dec 11 - Dec 21 $22.53, Dec 21 6:40 am $46.06, Dec 26 8:10 pm $35.74, Dec 26 8:10 pm $21.78, Dec 26 8:10 pm $46.60, Dec 31 11:42 am $34.84, Dec 31 - Jan 5 $21.08, Dec 31 11:42 am $46.13, Jan 5 - Jan 10 $34.84, Dec 31 - Jan 5 $20.95, Jan 5 5:31 am $46.13, Jan 5 - Jan 10 $33.59, Jan 10 2:35 am $20.24, Jan 10 2:35 am $45.67, Jan 15 - Jan 25 $33.20, Jan 15 - Jan 20 $19.55, Jan 15 12:51 am $45.67, Jan 15 - Jan 25 $33.20, Jan 15 - Jan 20 $18.95, Jan 20 1:07 am $45.67, Jan 15 - Jan 25 $33.86, Jan 25 1:36 am $18.81, Jan 25 1:36 am $45.21, Jan 30 1:37 am $33.20, Jan 30 1:37 am $18.67, Jan 30 1:37 am $44.75, Feb 4 3:44 am $33.01, Feb 4 3:44 am $18.64, Feb 4 3:44 am $44.30, Feb 9 - Feb 14 $33.66, Feb 9 - Mar 6 $14.96, Feb 9 5:27 am $44.30, Feb 9 - Feb 14 $33.66, Feb 9 - Mar 6 $14.93, Feb 14 12:24 pm $43.85, Feb 19 - Feb 25 $33.66, Feb 9 - Mar 6 $14.92, Feb 19 8:10 pm $43.85, Feb 19 - Feb 25 $33.66, Feb 9 - Mar 6 $14.84, Feb 25 9:10 am $43.41, Mar 6 8:58 am $33.66, Feb 9 - Mar 6 $14.51, Mar 6 8:58 am $42.54, Mar 17 8:06 pm $34.23, Mar 17 - Mar 29 $15.00, Mar 17 8:06 pm $42.11, Mar 29 8:52 am $34.23, Mar 29 8:52 am $34.23, Mar 17 - Mar 29 $41.68, Apr 9 6:00 pm $34.90, Apr 9 6:00 pm $34.90, Apr 9 6:00 pm $41.26, Apr 21 2:34 pm $39.28, Apr 21 2:34 pm $34.22, Apr 21 2:34 pm 133,680 2,050,613
2,343,750
1,875,000
1,406,250
937,500
468,750
Oct
Dec
Feb
Apr
Jun
Aug
Oct
Dec
Feb
Apr
Jun
2015
2016
Price Details
New
Latest
$41.26 19 hrs ago
Highest
$46.60 Dec 31, '15
Lowest
$36.00 Jul 29, '15
Average
$41.89 (30d avg)
Added
May 28, 2014
3rd Party New
Latest
$34.22 19 hrs ago
Highest
$39.98 Dec 11, '15
Lowest
$12.16 Jun 13, '14
Average
$34.49 (30d avg)
Added
May 28, 2014
3rd Party Used
Latest
$39.28 19 hrs ago
Highest
$41.35 Mar 3, '15
Lowest
$14.51 Mar 6, '16
Average
$34.57 (30d avg)
Added
May 28, 2014
Sales Rank
30 day average: 1,378,611 1,635,746
Product Description
If you want to develop efficient, smooth-running applications, controlling concurrency and memory are vital. Automatic Reference Counting is Apple's game-changing memory management system, new to Xcode 4.2. shows you how ARC works and how best to incorporate it into your applications. Grand Central Dispatch (GCD) and blocks are key to developing great apps, allowing you to control threads for maximum performance.If for you, multithreading is an unsolved mystery and ARC is unexplored territory, then this is the book you'll need to make these concepts clear and send you on your way to becoming a master iOS and OS X developer.
Back to store list
