This is an electrical wire with a heat shrinkable sleeve, glueless joint, 2:1 shrink ratio, a diameter of 4.8mm, a length of 1m, and it is black, made from polyolefine and manufactured by Radpol. The product number is WRJCC4800240010030C1. The heat shrink sleeve is used for protecting exposed wire from damage while creating a moisture and fungus resistant barrier. The glueless joint allows for quick assembly without the need of any additional adhesives or tapes. The 2:1 shrink ratio allows for a snug fit that securely holds the wire in place. The 4.8mm diameter and 1m length offers a robust solution for a variety of power and telecommunications applications. The black polyolefine material is soft and pliable, making it easy to work with and resistant to many chemicals.