NBR rubber grommets/cable grommets Material: NBR compound Hardness: 40-80 Shore A Protect cable and wires, UV,O-zone resist NBR rubber grommets/cable grommetsMaterial: NBR compoundHardness: 40-80 Shore AProtect cable and wires, UV,O-zone resistApplications: to provent against sharp edges of holes for cable, wiring, tubing and more.Main used in electronic appliances, furnitures,trucks, tools , ...