... weights, wheel balance weights, wheel balancing weights, tire valves, valve stem, valve accessory, reifen ventile, tire pucnture seal insert string(self vulcanized ... :Brass stem or Zinc alloy stem, Natural rubber or EPDM,9002 valve core,C-cap,Plastic chrome sleeve or Brass chrome sleeve ... Quality insurance. OEM acceptable. High quality competitive price.7.Each valve is tested under standard of E.E.R.T.O ...