Rubber Gasket O-Ring Set, 18 Types, 225 Pieces Total, with Storage Case Thank you for viewing. This product is brand new and unused. ● Convenient 18 sizes! 225-piece set of nitrile rubber O-rings ● Widely applicable from water pipe equipment and water supply (faucets, etc.) to automobile and motorcycle maintenance, and repair of pumps and valves! ● Made of nitrile rubber with excellent oil resistance, abrasion resistance, and heat resistance, ensuring durability and peace of mind. ● Plenty of 18 different sizes ● Comes with a storage case for easy organization and convenient portability. ● Recommended for both home use as a staple item and for maintenance and repair work. [Product Contents] ・Storage case ×1 ・O-rings ×225 [Storage Case Size] Approximately 21cm × 10.5cm × 2.9cm [Material] O-rings: Nitrile rubber [O-ring Sizes and Quantities] 3×1mm (20 pieces), 4×1mm (20 pieces), 4.5×2mm (20 pieces), 5×2mm (20 pieces) 6×2mm (20 pieces), 6×2.5mm (20 pieces), 6×3mm (20 pieces), 7×2mm (20 pieces) 8×2mm (20 pieces), 9×2mm (5 pieces), 10×2mm (5 pieces), 12×3mm (5 pieces) 13×3mm (5 pieces), 14×2.5mm (5 pieces), 17×2.5mm (5 pieces), 18×4mm (5 pieces) 20×2mm (5 pieces), 22×2mm (5 pieces) [Precautions for Use] ・The color may differ from the actual product depending on the viewing environment.