Description: 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. Extra Heavy Blue Bands are the fifth of eight levels of resistance and great for rehabilitation and moderate to high resistance exercise.