Simply unlatch the Side-Empty™ door to quickly and easily unload balls while top door allows for single ball loading and unloading. Powder-coated 1-1/4" dia steel tubing is thicker than similar carts and will last years. Smooth-rolling 4" ball bearing wheels allow for easy maneuvering. Cart w/ All-Terrain wheels includes 2 front 12" dia wheels for easy transport on outdoor surfaces. Both hold 24 official basketballs. Assembly required.