This specially designed cup holder keeps drinks for wheelchair users within easy reach. If you are in a self propelled wheelchair, you need both arms for moving leaving none free for a drink. This Wheelchair Cup Holder is the ideal solution. Suitable for both self propelled or powered wheelchairs, and it is easy to install onto the frame. It folds flat when not in use. Can be attached to tubular poles from 2.2cm to 3.2cm (3/4" to 1-1/4") in diameter.