Fastens Wires, Cables, Hose And Ducts. DoubleLock Design Ensures 50 Percent More Tensile Strength Than Industry Standards. Flexible Nylon Material Allows Cable Ties To Remain Serviceable Through Temperature Ranges Of -40 To 185 Degrees Fahrenheit. Recognized Under Component Program Of UL, E125869. Meets Flammability Classification UL 94 V-2.