3/8 Inch Flame Retardant Wire Loom. Sold by the foot. Used to protect and cover wires in higher temperature environments such as engine compartments. Made from durable nylon with a flame retardant coating that will prevent fire flare-ups in the event of a catastrophic wire failure. Meets UL approval and is CSA certified. 3/8 Inch inner diameter is suitable for smaller bundles of wire. Corrugated outer wall makes this wire loom very flexible while adding strength. The wire loom has a full length slit which facilitates easy wire insertion, especially when using a wire insertion tool. Temperature range of -40° C to 135° C (-40° F to 275° F). Blue identity stripe runs the length of the tubing. When a flame retardant wire covering is required, this is the wire loom of choice.