Rolling Knee Walker instead of crutches -- works like a scooter to get around. This one has standard 8" wheels. Accommodates people 4'8"-6'2", max. weight 250 lbs. Platform for leg height at lowest setting is 11.75", highest setting is 19.5", cushion is 2" thick. Handle height is 25.75" low setting, 34.75" high setting; total weight 14 lbs, length 31", width 16.5". REQUEST LEFT OR RIGHT - easy to change yourself.