Reflex ball sets: 3 balls, 3 difficulty levels, 1 blindfold, 2 spare strings, 1 string stringer. Any age, any level. From beginner to proImprove reaction time and hand-eye coordination: the best way to develop your reflexes, reaction speed and hand-eye coordinationFun for the whole family: children from Ages 8+ and older ages 70+ enjoy this competitive fun game, everyone tries to battle by counting more consecutive hitsLighter, smoother and safer: our new design comes with an adjustable headband and string, from children to adults, it is lighter and softer, everyone can enjoy it without worrying about hitting each otherPractice anytime and anywhere: tie the headband , have fun and burn your body anywhere, improve your reaction speed, reflexes and have fun anytime Who should buy a boxing reflex ballOur Boxing reflex balls look simple but are designed to train complex movements and reactions. Anyone can use Pro Reflex Ball for practice purposes or for a fun game.How to use1. Put on the hand wraps, wear the elastic headband on your head correctly.2. Cut the elastic string and make sure the length is equal to your arm length.3. Tie the string to the ball and the headband. The extra channel can be reserved for future use.Punch It Up:1. First hit the ball to one side, then the other. Switch hands and repeat. If you find it difficult, try hitting it slowly and gently at the very beginning.2. Once you get comfortable with the move, try hitting it full throttle to get the string and ball parallel to the ground.Note:However, this unpredictability can cause a bit of frustration for the first user. Missing the reflex ball on the return can mean getting hit in the face with the ball - funny at first, but not so much after several tries. Once you insist for a few days, you will find it so ADDICTING and DRLE.Package included:25g soft foam ball x1 (with 1.2mm rope)Soft foam ball 25g x1 (with 1.5mm rope)Boxing tennis ball 60g x1 (with 2.0mm rope)Headband x1Spare strings x2Threading device x1User guide x1