The Bruno Electra-Ride III Custom Curved Rail Stair Lift is battery operated and custom designed to fit virtually any staircase. This stair lift has a 400 pound carrying capacity and can be installed on the inside or outside of the staircase. The optional wrap-around "park" positions allow you to easily enter and exit the lift away from the stairs. This feature also saves valuable space on your stairs. This curved stair lift can be custom-designed and ready to install in just a few weeks.