Features Cross Linked polyolefin tubing is much stronger than PVC tubing and will not burn like PVC Heat activated adhesive lining provides impervious seal to salt water, oil, acids, and sunlight as well as providing strain relief Highest shrink ratio - shrinks to 1/3 original size Shrinks at 257 DegreeF / 125 DegreeC Operating temperature range of -40 DegreeC to 110 DegreeC UL 224 Specifications Color: Black Size: 6"(15.2 cm) Diameter: 1/2"(12.7 mm) Shrink: 5/32"(4 mm) Wire Range: 8-4 AWG Weight: 0.10 lbs