CellPack Heat Shrink Heatshrink + adhesive 617807 - CellPack 127416, CellPack manufactures this heatshrink tubing, which features a 3:1 shrinkage ratio with an adhesive lining to provide a secure seal. The black tubing has an initial diameter of 8 mm, reducing to 2 mm when heated, ensuring a tight fit. It is commonly used for electrical insulation, moisture protection, and cable management in various applications. CellPack 127416 Heatshrink Adhesive Black 8 mm 3:1 Shrink 1pc