Relaxing your shoulders, neck and muscles, this speedball is a great choice. The best way to relieve stress is good for your body and mind. Improve your reaction speed, agility, accuracy, body symmetry, and eye-hand coordination while you must don't go to the gym have fun and inspire your body in 15 to 20 minutes Suitable for men or women, teenagers or children and even boxing coaches. You don't have to be a professional boxer to use the fight ball! Everyone can exercise, have fun or relieve stress. Not only athletes, gymnasts, martial artists, professional boxers, boxing enthusiasts, office workers or students can use this training ball. It can improve the reaction and coordination of adults and children. Compact and lightweight, easy to carry, suitable for many occasions (business trip, family trip, gym, family, office, outdoor). Easy to use. The training ball is equipped with rubber bands and boxing training can begin immediately. If necessary, you can quickly and easily adjust the length of the elastic. The fight ball's small size makes it easy to take with you, so you can train anywhere. The boxing training device is the perfect gift for boxing, fitness and sports lovers who are looking for better boxing reflexes, reactions and agility. Material: PU Size: PU Ball Diameter: 89mm / Rope Length: 2.9m Effect: Training of impact sensitivity and reaction speed. Content: 1 speed boxing ball 2 suction cup