Exercise tubing can be used wherever the exercise resistance therapy is done. In addition, it can be used for fingers and other extremities where smaller exercise material is needed for exercise resistance therapy. Cando exercise tube is color-coded to show its resistance level using Theraband trademarked colors. Cando tubing is packaged in dispenser cartons to make your exercise therapy easy. 25 Ft per box. Cando Exercise Tubing Gold, XXX-Heavy for exercise resistance therapy anywhere.