Design Engineering 010466 Dyno Strap Heat Guard, 5" x 3' Protect Dynamometer tie-down straps from burn-through from exhaust exit heat Made of a high temperature resistant aluminized Mylar material Withstands 500 degrees Fahrenheit of direct heat and 2000 degrees Fahrenheit of radiant heat Easily slips over Dyno tie down straps Measures 36 inches long by 5 inches wide