Delock Heat Shrink Tubing Box with Adhesive Liner, Shrink Ratio 4:1, 5 m x 8 mm Black. Length: approx. 5 m. Diameter: approx. 8 mm. Shrink Ratio 4:1. Shrink Temperature: 70 °C to 125 °C. Material: Polyolefin. Color: Black. This heat shrink tubing from Delock is used for the protection and insulation of cables, electrical lines, or wires. When exposed to heat, the tubing completely encases the cable and shrinks down. This protects the cable from weather influences and mechanical damage. The adhesive on the inner wall bonds the heat shrink tubing to the encapsulated wire or cable. Convenient dispenser box. The handy dispenser box is ideal for transport and allows for organized and tidy storage. The heat shrink tubes remain free from dirt and dust. Additionally, it allows for easy unwinding and custom cutting. Versatile use. The heat shrink tubing can be used, for example, in a workshop or in the industry.