【TWO-IN-ONE: FITNESS AND MASSAGE】: When the hula Rings hoop is rotating quickly, the soft rubber massage heads (including magnetic therapy disks) deeply massage your muscles, helping you burn fat quickly and eliminating fatigue. In particular, it is particularly useful for postpartum waist training, after long periods of sitting in an office and when your physical fitness levels are low.
【EASY TO USE AND NEVER FALLS】: The smart hula Rings hoop is simple to use. Compared with traditional hula Rings , the hula Ring will not fall down, which solves the problem of beginners being unable to use it. Each linking segment includes a magnetic disk, and soft massage heads provide a 360° comprehensive massage effect, which doubles the fitness benefits.
【REMOVABLE DESIGN】: It consists of 24 detachable parts, which can be disassembled by pressing a button. You can choose your own hula rings according to your waist circumference. The hoop circle can be adjusted to 15 to 24 parts according to the waist circumference. These parts are easy to disassemble and easy to store.

【Wide range of uses】Stress balls can train arms and wrists as hand grip strengthener balls, strengthen hand exercises, and relieve joint pain.Help the injured do rehabilitation training ,divert attention to change some bad habits and relief stress .
【Applicable to a wide range of people】 The grip training ball is suitable for office workers who need to type for a long time，patient who need rehabilitation training after injury and also suitable for sports-loving people rock climber wrestler or softball pitcher etc. Suitable for children, adolescents, all ages, including the elderly.
【Four resistance levels】 The grip training ball set includes four balls, with four resistance levels: 13kg (yellow), 20kg (orange), 30kg (blue), and 35kg (green). Different people use different colors for different purposes. For example, yellow balls can be used for children and the elderly.