Only size 5, and size 4 are available for this. Although this should not be a major problem as this is for recreational play and practicing purpose, so kids are ok to play with this as well. In fact, the ball that will be given away to the developing countries will be used by the kids mostly. If you are buying this for an adult go for size 5, and if you are buying for kids or youth players then better go for size 4.
These are used in international level matches and top league matches like UEFA Champions League, Italian Serie A, English Premier League, Spanish La Liga, Bundesliga, Major League Soccer. Not only these but also all the tournaments approved by FIFA. So you can easily understand that these are the highest quality balls with the highest level of air retention, shape, water absorption, trajectory, curve, and performance. Otherwise, FIFA would not have approved these balls.
Of everything that we have analyzed about these soccer balls, one of the biggest things that you can look at for is the external material of the ball. TPU seems like it is the standard in durability for soccer balls in this price range. Machine stitching is another thing that you want to make sure that you have, as it appears that some balls that are stitched otherwise can split open and leak. In any case, make sure that you have your own soccer pump so that you can always be sure that your soccer ball is properly inflated.
If you are looking to teach your little one all about the game of soccer, than this Spalding Rookie Gear soccer ball is perfect. This particular soccer ball by Spalding weighs 25 percent less than most size three soccer balls to help your child build basic essential skills. Measuring 10 inches all around, this ball is specifically designed for young recreational players who age eight or under. This soccer ball has a composite machine stitched cover to ensure your kid will get years of play out of it. Your kid has the option to choose from five different color patterns, yellow and blue, yellow with blue and orange accents, purple and blue, green and blue, or pink. No matter what color your kid may want, this soccer ball is sure to stimulate their visual sensory to keep them focused on the game. https://www.youtube.com/watch?v=_TX8dExPIWc