It comes with three adjustable resistance levels, so it can be perfectly adapted to the workout needs of all groups, which include children, women and adults. The set adopts high-elastic TPE elastic rope and thickened refined steel buckle, which features strong fracture resistance and no deformation during use. The resistance of the set can be adjusted between 35lbs and 125lbs for dual function of stretching and shaping, which helps the user to build a slim waist and a beautiful back. It only takes 10 minutes of exercise with this set every day to effectively improve problems such as rounded shoulders and hunchback and develop a straight posture. This 7-piece set is lightweight and easy to store, and it can be carried with you on business trips and travels to make exercise not limited by venue.