Our product:Long service life, high power and toughness, able to operating for long durations of timeLow elongation and better wear resistanceWith a soft body and a closer match to the wheel groove, it has a wide range of applicationsProduct selection of advantageous uncooked materials, removing of faulty products, oil and heat resistance, anti-static, and high-quality transmission performanceProduct code description:La=outer circumference Lp, Le=nodal size Li=inner circumference