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.
The first step in purchasing a soccer ball is determining the proper size for your age group. Many soccer leagues have different size requirements, so be sure to check with your coach or organization to find out which is the proper size for the age group that the ball will be used with. Soccer balls for match use come in three different sizes which range from size 3 to size 5.
2010 Jabulani Adidas This ball has 8 panels. A special variant was used for the final match, the gold Jo'bulani (picture on the left), which was named after "Jo'burg", a standard South African nickname for Johannesburg, site of the final game. The ball was notable for the controversy it attracted, with players and fans contending that its aerodynamics were unusually unpredictable. 
Controlling the game is everything. From touch, shape, and movement, to flight of the ball, the construction of your soccer ball can impact how well you command the pitch. Competitive soccer players usually have different types of soccer balls for training, match day or just to kick around. See the options below for choosing the right adidas soccer ball for your favorite type of play.
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