Heat shrinkable tubes ??????

TTEkng tubes - heat shrinkable electrical insulating tubes with an adhesive layer are designed for use in couplings, cables with plastic, paper and rubber insulation. The adhesive layer provides excellent adhesion to metal and other materials, eliminating the possibility of gaps and protecting against moisture, dust and chemicals.
Such heat shrinkable tubing is ideal for installation and repair of cable connections, couplings, splitters and other elements of electrical networks. It provides a high level of electrical insulation, helps to prevent short circuits and increases the reliability of the entire system.