Healthcare grade * Deluxe extra heavy duty vacuum seat * Anti-slip handgrips * Push/Pull handle and fast drying removable mesh back/sling * User friendly self storing sliding footrest support prevents foot dragging and entrapment * Reinforced at all stress related areas * Dual drop arm * Internal width: 20 * Exernal width: 22 * Threaded stem casters: Rustproff 3 twin design * Overall size: 40