Resistance Band Training Systems Small Single Band Package is a great alternative to deadweight strength training but is also unmatched as a standalone elastic resistance training portable gym that can quickly enhance total body power, strength, speed and flexibility as well as movement coordination and balance. Recommended Training Use: Effective for any level lower body strength training, Effective for any level Upper body strength training, Excellent Boot camp or group fitness strengthening package, Age 12-18 Girls single band strength training package, Age 10-17 boys single band strength training package, All ages of adult Male and Female strength training, Perfect progressive band stretching package, Good beginner band package, Good assisted pull up band package