General description Heat Shrink Tube Kit includes 530 pieces of environmentally friendly polyolefin tubes designed for various DIY projects, electrical insulation, and mechanical protection. The tubes are flame retardant, flexible, and resistant to acids, alkalis, and corrosion, making them suitable for a wide range of applications. Technical specifications Shrink ratio: 2:1 Shrinking temperature: low Material: polyolefin Usage To use the heat shrink tubes, follow these steps: Prepare a heat shrink tool. Place the protective tube on the product to be heat shrunk. Heat it using a heat gun, soldering iron, hair dryer, or lighter. Other information