Rubber dock bumpers Material: NR,EPDM,CR or custom material Hardness: 70-90 shore A Vibration Absorbsion, Aging resist, etc. Rubber dock bumpersMaterial: NR,EPDM,CR or custom materialHardness: 70-90 shore AVibration Absorbsion, Aging resist, O-zone resist, UV resist etc. Rubber dock bumpers