Great buy for the end of summer ... the swingball, ie "turning tennis"! The principle is simple but really effective: the entire family (5 years, 7 years and ... more!) Has taken the game Very good parts of fun took place around the stick.. The primary objective was to motivate our older than 7 years for the use of the racket because it has great difficulty with this, and very little skill. After 1 week of use progress was already very clear. And much fun of course! The game is available from 4-5 years, but attention to the smallest since the ball can spin very rapidly if the 'hard knock. Remember this is ue tennis ball, it can get quite bad anyway.