• Provides multiple unique grip options, enables Exercise like open and closed hand grips, holding objects with resistance, no-grip-required Exercise.
• Enables never before possible Exercise like simultaneous upper and lower body work, opening amazing possibilities for the series athlete.
• Color-coded Progressive Resistance system allows users to recognize improvement as it happens, as you grow stronger you can move up to the next color.
• Highest quality natural rubber latex resistance bands are recognized as the original system of progressive resistance for over 40 years.

You can also download the Thera-band app on your phone either from Appstore or from GooglePlay. See here.