Abstract: A device which functions as a conventional wheelchair, a dynamic seating device, a stander and a hands-free walker. The device raises the user to a standing position from a seated position, allowing the user to propel the device by the user's legs and feet. The seat carriage is slideably attached to vertical support members such that the seat carriage may be slid and positioned from a lower position to an upper position and from the upper position to the lower position. As the seat carriage is raised, the seat swings from generally horizontal first position to a generally vertical second position. As the seat carriage is lowered, the seat swings from the second position to the first position.