The Allpoints 851158 Fiberglass Sleeve is a 100-foot protective tubing with a 3/8" diameter, designed to shield wires and cables from heat, abrasion, and electrical damage. It works by sliding over existing wiring, creating an insulating barrier that helps prevent direct exposure to high temperatures and mechanical wear. The fiberglass construction provides strong heat resistance while maintaining flexibility for easy installation in tight spaces. This design helps extend wire life, reduce the risk of short circuits, and support safe, dependable operation in commercial kitchen and industrial equipment environments.