A reformer is a “Pilates machine” used for traditional Pilates as well as rehabilitation. Body Tone reformer classes are limited to 5 clients and are suitable for clients with a good base level of fitness and mobility who are looking for a challenge. The reformer machine comprises of a horizontal sliding carriage, suspended on a smooth gliding track within a solid rectangular frame. The sliding carriage has a range of different strength springs beneath, and these provide the resistance aspect of the exercise. There are cables and pulleys that control the movement of the sliding carriage.