If you are unsure of which size to get your child, I will recommend what size I think based off real-world use. The size 3 is good for any child until about first grade or second grade, which is when a child should move into a size 4. The size 4 should last until they get to middle school (around 6th or 7th grade), and then they would move into the adult official size 5.
The internal nylon wound carcass makes certain the ball is a perfect sphere at all times so that its shape can glide smoothly on any surface. The machine stitching is extensive and delivers unrivaled quality in its structure. The butyl bladder guarantees that no air will escape no matter how often the ball is used. TPU material on the outside is advantageous because it resists scuffing and exterior damage.
This ball has seen a lot of use since Christmas, and while that's not a good indication of how long the batteries and lights will last, my kids have been having a blast with it at night. This ball isn't like a normal soccer ball, it's more of a smooth rubber, so it won't have the same feel as a normal ball. It feels heavier to me too, but I didn't confirm that on the scale. Once or twice the ball turned off in use, but came back on after a minute. I recommend this ball as an outdoor nighttime novelty ball, certainly not a competition ball. And the 5-star rating is directly from my 8-year-old son. His words, "I love it!"
Soccer balls have several panels that influence their flight characteristics and the amount of control a player can have while playing. International soccer competitions use a 32-panel ball. Major leagues use an 18-panel ball and indoor leagues use a 6-panel ball. High-end soccer balls have hand-stitched panels with a synthetic thread. A low-cost one for practice and training will usually have its panels glued together.
If you are all about playing soccer competitively or recreationally, you know how important it is that you have a great game ball for play. The thing is, buying a quality soccer ball can get really expensive, and it can be difficult to find a great soccer ball for a great price. So where do you start looking for finding a good soccer ball for a low price?
Latex bladders are one of the best materials when it comes to ball construction. However, with latex bladders, air won’t last as long as butyl bladders and will need more attention for proper inflation. Butyl-blend bladders hold in the air much better, but they are harder and less receptive in play. Mid-priced balls will usually have a mix of butyl and rubber. https://www.youtube.com/watch?v=c1SVcjYY6TE