Description :   19.1mm Adhesive Dual-Wall 3 : 1 Heat Shrink Tube Sleeve 50cm Metre  Specification :   Shrinkage Ratio : 3 : 1 (will shrink to 1\/3 its supplied diameter) Minimum Shrinkage Temp : +70 C Supplied internal diameter : 19.1 mm minimum. Fully shrunk internal diameter : 6.30 mm maximum. 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 Cutting method : Scissors or sharp knife Total wall thickness : 1.95±0.15 Wall thickness of adhesive : 0.55± 0.15  Package includes :   1 x Heat shrink(19.1mm)  Details pictures :