UPGRADED VERSION - Based on the valuable feedback from customers, we improved the product and now we are proud to introduce YMX BOXING V2.0 Reflex Ball to you. The new version contains 2 comfortable headbands and 2 Primary training balls that allows 2 person compete each other, and provides 2 higher level balls for advanced trainingTHE BEST WAY TO GET OFF VIDEO GAMES AND KEEP ACTIVE -My 10 & 12 year old like it so much, that we came back and ordered several more for upcoming birthday gifts for their friends My husband uses my sons so much I guess I will need more for our house too. And best of all it gets them off the gaming systems and moving around- unpromptedFUN FOR THE WHOLE FAMILY - Kids age 8+ and elders age up to 70+ are enjoying this competitive fun game, everyone are trying to beat each other by counting more consecutive punchesGREAT WORKOUT WITHOUT NOTICING - Reflex Balls are the new yo-yo for people that enjoy fun activities while getting exercise on the side The fun factor and mellow learning curve are surprisingly addictive, the time fly by and you dont realize how much youve been trainingTHE BEST WAY TO IMPROVE REACTION TIME & HAND-EYE COORDINATION It might not going to improve your punching or boxing technique, but it will definitely improve your reaction time and hand-eye coordination while providing a fun warm-up exercise