Aluminum Frame in bright colors. • Height adjustable. • Soft rubber wheels adhere to any surface and will not allow the Nimbo to slide backwards. • One directional rear 5" wheels with aluminum ratchet and pin mechanism. ...NEW! • Anti-Reverse override bracket disengages the one directional rear wheels and allows forward & reverse mobility. • Front swivel 4.5" wheels enhance maneuverability and ease of turning. • Locking mechanism easily switches front wheels from swivel to non-swivel. Each wheel is independently adjusted. • The KA 2200N – KA 5200N can be used in both anterior and posterior positions. • Latex-free handgrips with flanged ends. • Folds easily for convenient transporting. • Limited Lifetime Warranty.