"Upgraded Version - The new version includes 2 comfortable headbands and 2 beginner training balls for 2 players to learn and play together, and 2 higher level balls for advanced training.Fun for the whole family - Children from 10+ to 70 year olds enjoy this competition-based game where everyone tries to beat the other by counting more hits in a row.Great training without knowing it - The fun factor and gentle learning curve are surprisingly addictive, time flies by like it's flying, and you won't notice how much you've trained.Best way to improve hand-eye coordination - It may not improve your boxing or punching technique, but it will definitely improve your reaction time and hand-eye coordination while giving you a light workout.Easy and safe to use - We have specially developed the 4 balls, mainly for beginners, to be a very basic level, easy to master, and no boxing gloves are needed, as the balls are very light and soft, and will not hurt even if hit in the face."