The WRJCC3801190110030J1 with Heat shrink sleeve, glueless, 2: 1, 38mm, L: 1m, yellow, polyolefine is an insulation sleeve manufactured by Radpol. It is used for insulating and protecting electrical wires, terminals, and connections from outside elements. This sleeve is made of polyolefine and has a yellow color. It has a glueless installation process and a shrink ratio of 2: 1. The length of the sleeve is 1m and the diameter of the sleeve is 38mm. It provides abrasion protection and insulation properties.