HellermannTyton HIS-3-6/2-PO-X-BK - HIS-3 is used in general purpose of electrical insulation with a high level of protection against mechanical abrasion.Unlined tubing in handly dispenser packs High shrink ratio 3:1 Fits highly variable cable dimensions Only 7 sizes for application diameter range of 1 mm up to 20 mm, reduce inventory by half Transparent color is halogen free