Our client has fibrosis of the lungs and requires additional oxygen when she goes out to do her shopping. She had been using large oxygen bottles, which she transported on a steel-framed trolley, but this was getting too heavy for her. She wanted to use smaller bottles but the gas service provider was unable to provide her with a smaller, lightweight trolley. A simple, lightweight trolley was built that enables the client to get out of the house to do her shopping whenever she wants. Ref T8-220