3M™ 8560 three way cold shrink cable breakout boot features an open end and is factory expanded and mounted on a removable plastic core. When the supporting cores inside the boot are removed, this pre stretched boot shrinks to the pre-determined diameter, creating an environmental enclosure for individual cable phase legs and the overall cable jacket. It can be used in conjunction with cold shrink silicone rubber termination assemblies and rjs series rejacketing sleeves for shielded power cable terminating applications. It's compatible with cold shrink silicone rubber termination products and rjs series phase rejacketing sleeves.