... componentOur products include:1.material:made in high grade silicone rubber material,environmental safe material,non-toxic.2.it' ... sharp edges of drilled or punched holes for wiring, cable, tubing, piping, hoses, air lines, rope and more. Used ... ItemDescriptionProduct NameRubber partMaterialNR, NBR, SBR, EPDM, IIR, CR, SILICONE, VITONHardness 20~90 Shore APacking Inner-Plastic Bag; Outer -Standard ...