Marine grade, flexible polyolefin heat shrinkable tubing. 3:1 shrink ratio with adhesive liner. Flame retardant. Once installed, provides a complete environmental seal to prevent corrosion, enhance insulation and improve abrasion resistance. - 55°C to 110°C operating temp. 3" Lengths are Clam Packed. 1-1/2" Lengths are Poly Bagged.