Wesco spartan economy 2 in 1 senior truck. Sturdy, lightweight aluminum frame. 18-inches wide noseplate for large loads. Non-marking 5-inches diameter by 1-1/4-inches width swivel casters. Pedal release allows easy conversion from 2-wheel to 4-wheel position. Extra strength noseplate cast from special aluminum alloy. Value-priced truck. Bed measures: 51-inches length by 12-inches width. Measures 22-inches width by 61-1/2-inches height by 19-inches depth. Wheel type: PE (steel offset). Pneumatic casters measures 10-inches diameter by 3-1/2-inches width. 2 wheel has 500 pounds capacity and 4 wheel has 1000 pounds capacity.