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