Theraband professional latex resistance bands help users rehabilitate injuries improve functional living enhance athletic performance and makes measuring progress and achieving goals for fitness or therapy easy. the resistance bands are easy-to-use convenient portable and are an effective alternative to free weights and weight machines. they can be used in the clinic at-home or on-the-go. they are available in color-coded levels of progressive resistance giving at-a-glance documentation of progress from one level to the next and allows the user to progress as they get stronger. "