This ball is based on the ball used in the 1978 world cup, however it is an unbelievable improvement!
It's made of 32 plastic panels sealed together using heat, has a granular surface, a butyl rubber bladder with a woven carcass and it weighs 15oz. However all of these are just details.
This ball is truly beautiful to kick, its surface makes the ball brilliant in the air and emphasizes any shot that you take. Curve balls are made insane with this ball and knuckle balls are beautiful. The surface grips to the air to give it the needed curves and dips but it doesn't slow down the shot much. This means you can get a very low driven shot with inside or outside curve.
There isn't much more I can say in the way of positives, since it truly is the feel of it that makes the ball what it is, which is a majestic and deadly piece of equipment.
Now, the only downside is that the ball is quite expensive (($60)Depending on where you buy it from, it varies a lot, I bought mine for $20) I would not reccomend you to buy this ball for the general kick about, it is more suited to people who really want to practice their free kicks and do it on a daily basis.
All in all, a simply brilliant ball.