K/STMC2 Multi-coloured kit. Heat-shrinkable tubing is universally applied for the insulation of connections or for the end-handling of electric wire, for the insulation of soldered points on resistors and capacitors, for the identification and encapsulation of electric wire, for the corrosion-proofing of metallic rods or tubes and for the protection of antennas. Heat-shrinkable tubes are used for the corrosion-proof and waterproof connection of fibre optic cable.