Uplift Seat Assist Makes any armchair an automatic lifting seat. Self-powered lifting cushion assists you gently up and down from an armchair or sofa. As you sit down in a seat, you are gently eased into a seated position. The lifting piston activates automatically as you shift forward and begin to stand, providing a stable lift up from the chair or sofa. Portable with built-in carrying handle. Coated memory foam cushion adjusts to the users weight, shape and temperature. Waterproof, fire retardant cover is removable and machine washable. Weight: 9 lbs. Black. Uplift Seat Specifications: Base Depth: 16" (41cm) Base Width: 15" (38cm) Seat Depth: 19" Seat Width: 17" Seat Height, open: 10" Seat Height, closed: 2"