... 4)good quality, reasonable price Shock Absorber Rubber Grommets Sizeaccording to customers' drawing, 2D & 3DMaterialSilicone,FKM,EPDM,NBR,SBR ... ~80 Shore A, others 40~90 Shore AColorany colorTechnologymouldingRemarks: how to choose the material, not the expensive is the best, each ... We are specialized in the manufacturing kinds of rubber products for more than 20 years, wide varieties, rich materials, ...