The surface is treated with special material, durable and rustproof. - Elegant appearance. - Industrial high carbon steel forging oil filter cartridge wrench. - Widely adapted to a variety of scenes, bicycles, cars, all kinds of machinery, auto repair. - High hardness, tight connection, gripping force, not easy to skid. - The belt is made of rubber with good tenacity. - The teeth are finely polished and the teeth are clear.