Mobile sita chairs have a sturdy frame of coated steel with four double castors that can independently be locked. When pulling the control lever, which is fixed on the right side of the chair, backwards. The light and efficient design of sita makes it does utilize very simple. incorporated movable bolster as well as the upholstered armrests provide a highly at ease seating of the patient in every chair position in extension the side parts avoid the patient falling off the chair. By pushing the control lever forward the legrest can be adjusted, also supported by a gas spring. With the release of the control lever, backrest naturally moves back. Backrest can, with the help of a gas spring, steplessly be adjusted up to a completely flat position. Sita accessories can be equipped according to one's requirements.