The premium portable lifting seat helps people stand without assistance. Powered by a hydro-pneumatic gas spring, it uses no batteries or electricity. Activates automatically as the user stands, lifting up to 70% of their weight from 195lbs up to 350 pounds. Patented Lever lift technology provides a safe, gentle lift without pushing you forward. Portable, with a built-in carry handle, and weighs just 9 pounds. For use at home or away. The waterproof cover and memory foam cushion ensure years of comfort.