Description :  Heat Shrink Tubing 50.8 mm Black Tube Sleeving Kit Pack  Supplied internal diameter : 50.8 mm minimum Fully shrunk internal diameter : 25.4 mm maximum Length : 1.22m Colour : Black Shrinkage Ratio : 2 : 1 (will shrink to half its supplied diameter) Wall thickness (when fully shrunk) : 0.8 mm approx. Material : Polyolefin Minimum Shrinkage Temp : +70 C Full Shrinkage Temp : +110 C maximum  Operating Temperature : -55 C to +125 C Tensile strength : 10.4 Mpa Dielectric strength : 15 kV\/mm Manufacture specification : ISO9001 Flammability : Flame Retardant Approvals : UL Approved Supplied format (round or flat) : Product is supplied flat Shrinking method : Heat gun - see our eBay Shop for products Cutting method : Scissors or sharp knife  Package Included :   1 x Heat Shrink (50.8mm)  Detail pictures :