20 Ft 34 19Mm Polyolefin White Heat Shrink Tubing 2:1 RatioHigh Quality Flexible Polyolefin Heat Shrink Tubing Protect and insulate wiring with this professional grade tubing Fast, safe and easy installation May be used for Electrical Insulation, Strain Relief, cable Bonding, color-coding, Wire Marking, corrosion Protection, Solder Insulation, Wire..