The Arctic Hayes Plumber's O-Ring Kit contains a wide selection of the most commonly used sizes. Supplied in a quality carry/storage compartment box. Contains: 12 of each size: 22 x 1.8mm, 14 x 2.65mm, 24 x 1.8mm, 26 x 2.65mm, 27 x 2.65mm, 32 x 2.65mm, 30 x 3.5mm, 22 x 2.65mm, 29 x 3.5mm, 33 x 1.8mm 24 of size: 29 x 2.65mm