CellPack Heat Shrink Heatshrink + adhesive 617808 - CellPack 150278, The CellPack heatshrink features a 3:1 shrinkage ratio and includes adhesive, making it ideal for providing a sealed, secure fit around cables. Its black, 24 mm diameter shrinks to 8 mm, offering excellent protection and insulation. This product is commonly used in electrical installations and repairs. CellPack 150278 Heatshrink+Adhesive Black 24mm 3:1 Shrinkage