This Insultab 300500001A5 HS-105 black heat shrink tubing has a 1/2" inside diameter (ID), is 50' long, and is suitable for bundling wires, repairing insulation, insulating wires and wired connections for protection from abrasion or contact, and providing strain relief. It is made of PVC (polyvinyl chloride) for strength and resistance to chemicals, oils, moisture, salt water, fungus, and ultraviolet (UV) light. It has a 2:1 shrink ratio and a volume resistivity of 21.5 x 10 to the 12th power ohm-cm. It is Restriction of Hazardous Substances (RoHS) compliant, meets Underwriters Laboratories (UL) Subject 224 VW-1 standard for flammability, Canadian Standards Association (CSA) OFT standard for 600 volts, and ASTM International D3150 and Society of Automotive Engineers (SAE) AMS-DTL-23053/2 Class 2 standards for electrical insulation. This heat shrink tubing is suitable for a wide range of industrial, commercial, automotive, and military electrical applications.Specifications