This walker has a unique, easy-to-use braking mechanism that is activated when downward pressure is applied to the handle bars. Height adjusts in 1" increments between 29" and 36". Made from welded steel, the frame fits around standard wheelchairs and commodes for easier transfers. Skid resistant, non-marring, easy-rolling 4" ball-bearing wheels are placed at the rear and swivel casters at the front. Folds easily to stand on its own. Dimensions: base width - 22 1/2"; width between handle bars is 17 1/2".Weight capacity 400 lbs.