Material:NRB, FPM,Rubber Size: various size Kits:382pcs,386pcs,407pcs, 419pcs etc Rubber O-Ring Kits Metric 407pcs/Imperial/UniversaryModel: RT-GGA12Material: NBR,FPM,Silicone,etc Dimendion: Part Numbers Normal Size QtyPart Numbers Normal SizeQtyI/DO/DSectionIn kitI/DO/DSectionIn KitR-011/8"1/4"1/16"20R-1713/16"1-1/16"1/8"10R-023/16"5/16"1/16"20R-187/8"1-1/8"1/8"10R-031/4"3/8"1/16"20R-1915/16"1-3 ...