General description This heat shrink kit is perfect for various workshop projects, including repairing broken wires, providing electrical insulation, mechanical protection, bandwidth, wire connection, wire end processing, wire/cable connections, daily repairs, and color coding. It is an essential tool for both home and automotive DIY enthusiasts. Technical specifications Shrink ratio: 2:1 Material: Polyolefin Heat shrink tubing length: 45mm Inner diameters: 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 5mm, 6mm, 7mm, 10mm, 13mm Colors: Yellow, blue, black, green, red Quantity: 560 pieces in total Usage To use, cover the stripped part of the cable with the heat shrink tubing and apply heat using a soldering iron, heat gun, or a sufficiently hot hair dryer. The tubing will shrink to protect the wires and provide a professional finish to your repair work.