VERSATILE AND EFFECTIVE: Maximize workouts with an exciting, mobile, low-cost option for strength training and flexibility with no setup. Increase and decrease resistance, repetition, and use with compounded movements for a complete workout. COMPACT: Strength training, improved bone density, and better fitness results in a small package. Designed to enhance any fitness class, activity, gym, studio, or routine in a slim package that features a 12-inch loop of latex that fits comfortably around the upper and lower legs to allow users to work the hip and leg muscles. FITNESS CLASSIC They work for any level of athlete, a huge variety of exercises that target leg, core, arm, and back muscles. Ideal for short, controlled movements. RESISTANCE LEVEL: Heavy resistance which is equivalent to 12-45 lbs. suited for intermediate to advanced exercises great for training larger muscle groups