■ 225-piece set of nitrile rubber O-rings ■ For plumbing equipment, water supply (faucets, etc.), maintenance of automobiles and motorcycles, pumps, valves, etc. ■ 18 rich sizes ■ Excellent oil resistance, abrasion resistance, and heat resistance ■ Comes with a case for easy carrying and storage ■ Can be used for various purposes. [Product Contents]: Storage case x 1, O-rings x 225 [Storage Case Size]: (approx.) 21cm x 10.5cm x 2.9cm [O-ring Material]: Nitrile rubber [O-ring Types and Quantities] 3 x 1mm (20 pieces) 4 x 1mm (20 pieces) 4.5 x 2mm (20 pieces) 5 x 2mm (20 pieces) 6 x 2mm (20 pieces) 6 x 2.5mm (20 pieces) 6 x 3mm (20 pieces) 7 x 2mm (20 pieces) 8 x 2mm (20 pieces) 9 x 2mm (5 pieces) 10 x 2mm (5 pieces) 12 x 3mm (5 pieces) 13 x 3mm (5 pieces) 14 x 2.5mm (5 pieces) 17 x 2.5mm (5 pieces) 18 x 4mm (5 pieces) 20 x 2mm (5 pieces) 22 x 2mm (5 pieces) ○ Notes on Use ○ ※ Specifications are subject to change without notice for improvement. ※ Due to the environment of the display screen, the color of the actual product may differ slightly from the photo. ※ There may be stains/damage due to imported products. ○ Please purchase after agreeing to the above ○