This Lapp Kabel 83251611 is a heat shrink sleeving with a 2:1 shrink ratio and 4.8mm diameter size. It is made from polyolefin and is a glueless sleeving with a red color option. It is designed to protect cables, wires, and components from short circuits, abrasions, and moisture. The use of this product will help to ensure that any application is both safe and compliant.