Bariatric Starlock® Cushion has a 4" cell height with internal locking mechanism to lock in desired seating position. Locking device is centered in cushion. Although all air cells do not lock up with the Bariatric Starlock®, the structural portion of the patient's anatomy is addressed. Some cells on the very perimeter of the cushion mat still will be in cell communication to support tissue. Increases positioning, stability and aids in patient transfers. Patent No. 7,434,282 B2