Lightweight aluminum frame with steel cross brace provides durability. Walker maintains tight tolerance between frame and foot pieces for rattle free use. Comfortable hand grips and non-marking tips. Easy-to-use, push-button mechanisms let walkers fold easily and adjusts leg height. Each side folds independently to allow easy movement through narrow spaces, and the side cross braces provide extra durability. 300-lb. (136 kg) Weight capacity; Approximate user height 5'-6' (152-183 cm); Width inside hand grip, 16.5" (42 cm); Height adjustment, 27.5"-34.5" (70-88 cm); Folded width 4" (10 cm).