O ring, oil seals, hydraulic seal. Material: NBR, EPDM, SIL, CR ... : NBR, EPDM, SIL, CR, SBR etc. Color white,black,redSize according your requirementFeature fashion designUsage promotion giftCustomizedOEM & ODM are ... keypads; silicone babay feeder,nipple; wooden watches,LED watches..O ring,Rubber hose,rubber gasket,rubber washer , steering wheel cover etc ... , we will do our best for you. EPDM o ring