Rugged mobility device features a broad wheel base, adjustable high-low handlebars, and a caliper brake with a parking brake mechanism. A lower fixed-gear ratio make pedaling easier, allows the device to be reversed, and helps slow down speeders. Includes adjustable trunk support, adapted pedals, an adjustable extra-wide saddle seat, and push handle. For children up to 100 lbs. Inside leg length of 16 1/2" to 21 1/2", 16” wheels. Folding frame. Accessories sold separately. See Pelvic Strap (#W39433), Leg Calipers & Foot Sandals (#W39438), and In-Line Trunk Support (#W39628).