An elastic heat shrink tubing made of cross-linked polyolefin with a 3:1 shrink ratio, supplied in a storage box for easy keeping. It is internally coated with a thermoplastic adhesive that melts under heat and fills the gap between the tubing and the wire, protecting it from moisture. The tubing is available in six sizes ranging from 3.0 mm to 24.0 mm in black and transparent colors. • Provides reliable electrical insulation • Protects against moisture and longitudinal water migration • Protects against corrosion and mechanical damage