... " 2.Rubber surface treatment: graphite teflon coating 3.Material:natural rubber and spring steel FRAME WIPER BLADE--WIPER PARTS--AUTO BODY ACCESSORIES ... wiper armBMWRubber surface treatmentgraphite coating ,teflon coatingBuickColorcarbon fiber,chrome,red,blue,and yellowChevroletStructurewiper arm,backing,wiper adaptor,frame,blade,spoiler.ChryslerMaterialTPU+PP ...