A fireproof fiberglass sleeving specially designed to withstand up to 1200F deg radiant heat-perfect for protecting 3/8″ fuel line, brake lines, or wire bundles. May be coated with high temperature paint for added protection against heat and fraying. Install by pinching ends inward, slipping over line, and securing ends with clamps, ties, shrink wrap, silicone or silicone tape. Nominal ID: .574″ Maximum ID: .585″.