Extra-large 20" rear wheels and 6-1/2" front wheels transport balls and equipment over curbs, stairs, rocks, and more! Pneumatic tires provide sure-footed traction on a variety of surfaces. Heavy-duty ball-bearing casters deliver exceptional maneuverability. Powder-coated 1-1/4" dia steel frame is welded and powder-coated for maximum strength and durability. Does not include a Side-Empty™ door. Holds 24 official basketballs. Assembly required.