silicon seal: made of 100%silicone differ sizes and differ colors Odorless&nontoxic,unbreakable ... Many types of oil seal: TC, TB, TA, SC, SB, SA, VC, VB, VA, KC, KB, KA, DC, DB etc ... Ring, rubber gasket is welcomed as well. 7. Apply for: Auto, air condition, machinery, water pumps, valves, furniture, toys, pipes ... , Rubber gasket, Rubber ring, Sealing ring, Sealing gasket. 100% silicon seal / o-ring