The THERABAND Resistance Band Advanced Kit is a set of two bands – Blue and Black. They provide resistance in pounds ranging from 5.8 lbs. to 7.3 lbs. The Kit offers an increased level of rehabilitation and athletic strengthening and conditioning. These bands work to tone and rehab major muscle groups, and can be used for strength training, stretching, and increased range of motion for the upper and lower body. This kit is easy to use, versatile, and includes basic exercise instructions.