XIANQI Seal WashersThe package includes 141 pieces of o-ring washers in 18 sizes, meet your different needs. 2 TypesThis o ring gasket kit has 2 types of washers, one is made of rubber, which has good wear resistance, aging resistance and air tightness; and the other is made of fiber, which is suitable for plumbing and as a buffer, forming a watertight seal and absorbing friction and wear. FunctionsGasket is used to prevent pressure, corrosion between two objects, and natural expansion and contraction of pipelines and leakage. Washers are used as fasteners and also serve as spacers. Easy to StoreThe transparent plastic box equipped with compartments and size tables, each size of gasket is placed according to the corresponding size table, easy to take and store. Wide UseIdeal for plumbing, automotive, engineering, A/C manifold, chemical pipelines, cylinders, appliances, bearings, pumps, pulleys, etc. Material: rubber, fiber. Color: black, red. Quantity: 141 piece. Size: 60 pcs black rubber washer: 10 pcs: 4* 17* 4 mm. 10 pcs: 4* 16* 4 mm. 10 pcs: 12* 24* 2 mm. 10 pcs: 15* 24*3 mm. 5 pcs: 8* 18* 4 mm. 5 pcs: 8* 14* 4 mm. 5 pcs: 9.5* 17.5* 4 mm. 5 pcs: 10.5* 14* 4 mm. 81 pcs red fiber gasket: 10 pcs: 10* 13.5 mm. 10 pcs: 12* 17.5 mm. 10 pcs: 12* 17.5 mm. 10 pcs: 17* 21 mm. 10 pcs: 17* 24 mm. 10 pcs: 17* 24 mm. 10 pcs: 20.5* 25 mm. 5 pcs: 27* 33mm. 3 pcs: 30* 39 mm. 3 pcs: 27* 38 mm. Advantages: 18 sizes meet your different needs. Rubber washer has good wear resistance, aging resistance and air tightness. Fiber gasket is suitable for plumbing and as a buffer, forming a watertight seal and absorbing friction and wear. Ideal for plumbing, automotive, engineering, chemical pipelines, cylinders, appliances, bearings, pumps, pulleys, etc. Notes Please keep small objects out of the reach of children. If the gasket function declines, please replace it in time.