BELT - Compatible For gardening machines (lawn tractors, lawn mowers, etc.) MADE WITH KEVLAR 4L Size in inches: 1/2 x 40 Size in millimeters: 12.7 x 1016 The structure is characterized by a special low-friction fabric with aramid ropes. The outer fabric increases resistance to wear and heat. Aramid ropes offer high tensile strength, no elongation and high resistance to sudden loads. Product ID: 680040