This chair has a removable armest and footrest plus a solid rubber tire. The tires on the front are 8 inches while the back ones are 24 inches. The aluminum foot pedal features a PVC handle grove and is about 880mm in height and 670mm wide. The seat is 510mm wide and is paired with a 420mm backrest. The hand rim is 502mm in diameter. This can handle 300 pounds.