The latest innovation in ambulation mobility! The Genesis Mobile Stairlift is designed to help transport riders up and down stairs safely and efficiently. The lightweight and portable Mobile Stairlift does not require pre-installed tracks, and is able to carry up to 400 pounds as many as 120 flights of stairs on a single charge. To prevent injury, it is recommended that the operator be properly trained in the Stairlift's use, and that they first practice ascending and descending stairs without a rider