... rings, square rings, o-cord, square cord,,etc. for NBR, VITON, SILICON,,,,ETC Viton O-RING CORD, viton RUBBER ROPE ... goodHydraulic sealing items.backups , dowty seals, u seals,o rings, wipers, oil seals, piston seals, v packings, rod seals, wear rings, piston cups,,,,etc ... type in different sizes.good quantity , better price. viton seals, FKM seals, silicone seals, NBR seals,o-ring cord, rubber sheet