Insulated Pipe Jacket Width 4 In. Length 56 In. Thickness 1/2 In. Insulation Material Ceramic Fiberglass Jacket Material Non-Stick Impregnated Fiberglass Cloth Fits Max O.D. 14 in to 16 In. Application High Temperature Applications for Personnel Protection Insulation and Faster Startup Times Temp Rating 900 Degrees F Includes Strap and Buckle System