The Carex Upeasy Seat Assist (Standard) 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. Activates automatically as the user stands, lifting up to 70% of their weight up to 220 lbs. Patented LeveLift Technology ensures a safe, gentle lift without pushing you forward. Truly portable, it weighs just 9 pounds, has a built-in carry handle and works on most armchairs or sofas. The standard Upeasy Seat Assist features a washable 100-percent polyester cover and polyurethane foam cushion for easy care.