Customize a ball carrier for your team. These Ball Carriers are made of 16 gauge steel tubing. The entire body of the rack is all welded...no assembly. The wheels are heavy duty 3" swivel casters that are non marring to your gym floor. Wheels come assembled to the axles but must be bolted to the rack with four bolts and lock nuts. This rack will not shake apart. Will last for years!!! Will hold 15 Basketballs, 18 Volleyballs or 18 Soccer Balls.