65FT Heat Shrink Tubing Roll:Feel free to cut it to the length you need. Make sure you have enough heat shring tube for all your electrical and DIY projects Good Sealing:Our heat shrink tubing provides a tight and secure seal to protect your wires and cables from water, dust and other contaminants Easy to Cut and Install:With its 3:1 shrink ratio, this heat shrink tubing shrinks to 1/3 of its original diameter, making it easy to fit a variety of wire sizes Waterproof:The adhesive lining in heat shrink tubing creates a watertight seal as it cools, providing excellent protection against water, moisture and corrosion Wider Application: Heat shrink tubing is used for marine and automotive wiring, wire connections and DIY electrical wiring projects. For all your needs