General description Heat shrink tubing is essential for insulation in the automotive industry and is ideal for insulating electronics, terminal lugs, and small electrical parts. This adhesive-lined heat shrink provides a waterproof seal, protecting cabling from corrosion. The smaller blister reels are perfect for enthusiasts seeking an economical solution. Technical specifications Diameter: 6.4 mm Length: 3 m Shrink ratio: 3:1 Adhesive lined Waterproof Usage Please use our Laser Flameless Hot Air Blower Part No 6848 for the perfect seal.