These Union Balls come in synthetic rubberised upper for superior performance and shape retention with Standard Pin Grain Grip. Standard Pimpled surface provide optimal grip for passing, holding and catching. Suitable for all weather conditions. High Quality 3 Ply Core Linings. Latex Bladder with Butyl Valve . Long Lasting Anti Friction Inks. Professionally Hand Stitched. Available in Size, 5, 4, 3. Official size and weight