Material:plastic and metal Model Number:sensor Origin:Mainland China This is an NEW Original part,(oem) not aftermarket. May be a little dusty from storage use and have few minor scratches. Please review all pictures carefully and read description before buying. The compatibility we provide is acurate although may not guarantee 100%. We strongly recomend to match parts with yours, or contact your local dealer. you will get 4 sensor from this link Fitment: For Cadillac CT6(from 2016-01 to 2020) For Cadillac SRX(from 2016-01 to 2020) For Cadillac XT5(from 2016-01 to 2020) For Chevrolet Aveo(from 2017-01 to 2022-12) For Opel Ampera-e(from 2017-01 to 2020) For Opel Antara(from 2016-01 to 2018-12) For Opel Bolt(from 2017-01 to 2020) For Opel Karl(from 2015-01 to 2020) For Opel Mokka(from 2015-09 to 2019-12) For Opel Viva(from 2015-01 to 2020)