Our used Acorn 120 stair lifts are affordable and quality-engineered! Acorn stair lifts are made with DC battery motors that maintain a constant charge, so that if your home loses power, you can still get to where you need to be and don't have to worry about being stranded. The built-in swivel seat and footrest fold up to save space for waking past the unit, and the hand control is designed to be tough to break and simple to use!