18 sizes of sealing washersContains 18 popular sizes of O-ring flat 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, as well as airtightness. The fiber seal is suitable for plumbing and acts as a buffer, forming a tight seal and absorbing friction and wear. Classified storage Boxes with compartments and size charts match seals for easy storage and use. p> Wide useIdeal for plumbing, automotive, engineering, air conditioning manifold, chemical lines, cylinders, appliances, bearings, pumps, pulleys, etc. GuaranteeIf 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.