Features: Premium Material: Made of black insulated pe material, this set of 127pcs insulation heat shrink tubes is durable and reliable, providing long-lasting protection for your wires. Easy To Use: With this set, you can easily connect both sides of the wires, making it ideal for diy projects or professional use. Versatile: The heat shrink tubes can be used for various applications, such as electrical insulation, wire bundling, and cable protection. Heat-Shrinkable: The tubes are heat-shrinkable, which means they will shrink when exposed to heat, providing a tight seal around the wire and preventing moisture and other contaminants from entering. Customer Service: With customer satisfaction as our first priority, we offer a satisfaction service for all of our merchandise. If you have any problems, please contact us in time. We will give you replies as soon as possible. Specifications: Material: PE Quantity: 1 set/127pcs Notes: Please allow slightly errors due to manual measurement and different monitors. 127pcs*Heat Shrink Tube