rubber spacer 1)various rubber 2)different colors 3)custom rubber spacers 4)good quality, reasonable price Rubber Spacer Sizeaccording to your size(drawing)MaterialSilicone,NR,FKM,EPDM,NBR,SBR,Neoprene,HNBR,Polyurethane,FVMQ,FFKM,Aflas, etc.DuroSilicone: 20~80 Shore A, others 40~90 Shore AColorany colorTechnologymouldingNote: each material has its advantage, Silicone: high temperature resistance, ...