18 Sizes of Sealing WashersContains 18 popular sizes of flat O-ring washers, a total of 141 pieces. Refer to the picture for the specific size and quantity of each size. 2 Types of WashersThe set contains 8 sizes of rubber washers and 10 sizes of fiber gasket. The rubber washer is made of acrylonitrile-butadiene rubber, which has good wear resistance and aging resistance, and airtightness. The fiber gasket is suitable for plumbing and as a buffer, forming a watertight seal and absorbing friction and wear. Classified Storage Boxes with compartments and size tables correspond to joints for easy storage and use. Wide UseIdeal for plumbing, automotive, engineering, air conditioning manifold, chemical pipelines, cylinders, appliances, bearings, pumps, pulleys, etc. Warranty If you have any problems after receiving the goods or during use, please feel free to contact us, we will solve it for you within 24 hours. Product Description Product model: 141 pieces of rubber sealing washers in 18 sizes Color: black and red Material: rubber and fiber The black rubber washer is made of acrylonitrile-butadiene rubber, which has good wear resistance, aging resistance and water resistance. 'air. Red fiber gasket is suitable for plumbing and as a buffer, forming a watertight seal and absorbing friction and wear. Contents package: 60 PCS Black Rubber Washer Washer: 10 pcs 4 x 17 x 4 mm 10 pcs 4 x 16 x 4 mm 10 pieces 12 x 24 x 2 mm 10 pieces 15 x 24 x3 mm 5 pieces 8 x 18 x 4 mm 5 pieces 8 x 14 x 4 mm 5 pieces 9.5 x 17.5 x 4 mm 5 pieces 10.5 x 14 x 4 mm 81 Red fiber gasket PCS: 10 pieces 10 x 13.5 mm &nbsp ;10 pieces 12 x 17.5 mm * 10 pieces 12 x 17.5 mm * 10 pieces 17 x 21 mm 10 pieces 17 x 24 mm * 10 pieces 17 x 24 mm ** 10 pieces 20.5 x 25 mm 5 pieces 27 x 33 mm 3 pieces 30 x 39 mm 3 pieces 27 x 38 mm There is a little thickness difference between * and **. Package weight: 160g Application: Ideal for plumbing, automotive, engineering, air conditioning manifold, chemical pipelines, cylinders, appliances, bearings, pumps, pulleys, etc. Warranty: If you have any questions about the product, please contact us, we will solve it for you within 24 hours.