O-Ring Kits (LRD-06) Model:LRD-06 Size:30 different size material:NBR,VITON EPDM,Silicone.... Hardness: ... 60-90 ShoreA. O-Ring Kits (LRD-06)1.Kinds: 30 sizes = 382pcs2.Apply for auto,machines,air ... are interested in anyone of them. O-Ring Kits (LRD-06)