Description: 1. Material:Rubber 2. Color:Black 3. Quantity:300Pcs  Specification:<br>               300 x Rubber O Ring O-Ring Washer Seals Assortment Black 12 Sizes               Specifications(mm)         QTY(pcs)          Specifications(mm)         QTY(pcs)               9.19x2.62         25         9.92x2.62         25               10.78x2.62         25         11.91x2.62         25               12.37x2.62         25         13.1x2.62         25               13.92x2.62         25         15.08x2.62         25               15.54x2.62         25         15.88x2.62         25               17.13x2.62         25         17.88x2.62         25         Features:  1. Durable and practical  2. Wear resistance，corrosion resistance and high temperature resistance  3. Many specifications which can satisfied your different demand  4. Can be used to cylinders， automotive， pumps， electrical， chemical piping， windows， plumbing， bearing   Package included:  300 x Rubber O Ring