Product Description

Inner telescoping frame that adapts to doors of 1¼" to 1¾"thickness Impact-resistant super-strong thermoplastic Clear flap allows pet to see if slide is in place Tamper Proof Mounting System, door can't be removed fromoutside Simple 4-step installation. (Average install time: 20minutes) Floating bottom threshold for perfect seal every time Sturdy thermoplastic (ABS) frame; a see through poly vinyl flapwith patented edges to not warp; a floating sill to insure goodclosure; and a strong molded ABS lock-out slide to restrict thepet's movements when necessary. Tamper proofmounting system and easy installation. XX Large: 15"x20" flap Size: 2X Large. Color: White.