Thermo-Tec 14031 12', 1/2"- 1" I.D. Express Sleeve The new easy to use sleeving is a combination of a high temperature insulation material to a highly reflective mylar foil with a Velcro closure The sleeving is designed to provide maximum protection for wires, hoses, and cables from the very damaging effect of radiant heat with an easy application Simply pull apart the material, wrap around the wire and re-close the sleeving Express Sleeves reflect over 90 per cent of radiant heat, is fireproof and fire resistant and just looks good