Our product:Long provider life, high strength and toughness, capable of working for long durations of timeLow elongation and higher wear resistanceWith a gentle physique and a better fit to the wheel groove, it has a wide range of applicationsProduct choice of high quality uncooked materials, elimination of defective products, oil and warmth resistance, anti-static, and effective transmission performanceProduct code description:La=outer circumference Lp, Le=nodal length Li=inner circumference