"Transmission Union Fitting assortments are designed for specialty and general repair shops. Each assortment contains a specific collection of fast moving fittings that should be kept on hand when working with automotive hydraulic braking systems. Assortments contains 1/8""(2 pcs), 3/16""(10 pcs), 1/4""(4 pcs), 5/16""(2 pcs), 3/8""(2 pcs) and 1/2"" (2 pcs)compression unions Each size were placed in a transparent plastic bag which can be easy opened and closed."