... )Good thermal resistance 3)Outstanding abrasion resistance 4)Offer OEM Rubber Grommet Material- We use various kind of polymers like NBR ... , hoses, air lines, rope and more. Used in appliances, motors, tools, cars, trucks, trailers, electronic equipment, toys, bikes, RVs, boats, pumps ... sizes and structure availableHardness: 30 to 80 Shore A Durometer Rubber Grommet