Improve you reaction speed: We sure that using this reflex ball, since such a small target moves at a high speed at you, your cerebral response time will improve considerably if you train continuously with our boxing ball.One size fir all: Our Ball fits anyone from kids to adults. It also with our new adjustable string length design, you can switch between multiple users without the need to retie the string every time you switch like all other punching balls on the market. Improve your health: Our reflex fight ball is a good alternative for cardio training, it will work all muscle groups and let you enjoy the fun of boxing training in your spare time. It can greatly mobilize every muscle in your body and make you energetic in your work and life. Practice anytime anywhere: You don't have to go to a gym, strap the headband on, have fun and burn your body within 15-20 minutes! Perfect for work breaks or school breaks or even for the beach and the park, this boxing ball will burn many calories and help you get fit!Packaged and service guarantee: Comes with 2 boxing reflex ball and headband and drawing packet which is easy for you to carry anytime or anywhere. If you have any questions about our products, pls do not hesitate to contact us, we will reply you within 24 hours.Produktbeschreibung Specification: Packaged: 2 * boxing ball 1 * headband 1 * drawstring pocket - Our reflex fight ball is a good alternative for cardio training, it will work all muscle groups and let you enjoy the fun of boxing training in your spare time. - Practice anytime anywhere: You don't have to go to a gym, strap the headband on, have fun and burn your body within 15-20 minutes! Perfect for work breaks or school breaks or even for the beach and the park, this boxing ball will burn many calories and help you get fit! - One size fir all: Our Reflex Ball fits anyone from kids to adults. It also with our new adjustable string length design, you can switch between multiple users without the need to retie the string every time you switch like all other punching balls on the market. - Our training reflex ball features two different balls and elastic cords to cater to your skill level.Our reflex balls are not attached to a D-ring, so you can freely adjust difficulty by cord length. Warning: - Don't use it close to a fan.