... Aging resist, O-zone resist Custom rubber grommet for wire and cableMaterial: SBR,NR,EPDM,CR,NBR etcHardness: 40-80 ... against sharp edges of holes for cable, wiring, tubing and more.Main used in electronic appliances, furnitures,trucks, tools ,cable industry ... and more.Can be Ozone resist, UV resist, Prevent friction, Indoor and outdoor using.Materials:SBR, NBR, ...