Regulation 4.25 inch diameter green plastic hole cup standing 6 inches tall, available in either UK (22mm centre hole) or USA (28mm centre hole) sizes. White inner wall face is moulded with the cup. Manufactured in the popular 'American' design, and developed so as not to show up dirt and grime at the base of the hole cup whilst the bright white inner face gives good visibility for the player. For best results use with FAIRWAY PRODUCTS' locking ferrules.