419pc assorted O ring set from Blue Spot Tools. This O ring set is ideal for the garage or workshop and for general plumbing use. Complete with plastic handy storage case. Includes thirty two popular metric sizes: 3 x 1.5, 4 x 2, 5 x 2, 7 x 1.5, 10 x 1.5, 13 x 1.5, 10 x 2.5, 11 x 2.5, 13 x 2.5, 14 x 2.5, 16 x 2.5, 18 x 2.5, 19 x 2.5, 21 x 2.5, 22 x 2.5, 18 x 3.5, 20 x 3.5, 22 x 3.5, 23.5 x 3.5, 25 x 3.5, 26.5 x 3.5, 28 x 3.5, 30 x 3.5, 31 x 3.5, 33 x 3.5, 34.5 x 3.5, 36 x 3.5, 38 x 3.5, 41 x 3.5, 44 x 3.5, 47 x 3.5, 50 x 3.5mm. A comprehensive O ring set from Blue Spot Tools.