The Carex Upeasy Seat Assist Plus Manual Lifting Cushion is an economical, portable, lifting seat for those who need help to stand. Using a hydro-pneumatic gas spring, it is fully self-powered and does not require electricity or batteries. It activates automatically as the user stands, lifting up to 70% of his/her weight, up to 340 pounds, and its patented LeveLift Technology ensures a safe, gentle lift without pushing the user forward. Truly portable, it weighs just 9 pounds, has a built-in carry handle, and works on most armchairs or sofas. It is also washable, and its 100% polyester cover and polyurethane foam cushion are designed for easy care.