Just normal air. from pumps
. Professional Match Balls *. Match Balls *. Practice/Camp Balls *. Promotional Balls *. Indoor Balls *. Futsal Balls. six types
they use 6 inch balls
The circumference of a size 3 soccer ball is 23 to 24 inches. Size 4 soccer balls are 25 to 26 inches in circumference. The size used in professional soccer and upper level youth leagues is size 5 which is 27 to 28 inches. The smaller size 2 soccer balls are promotional soccer balls.
There is no specific collective noun for soccer balls, in which case a noun suitable for the situation is used; for example a sack of soccer balls, a bin of soccer balls, a rack of soccer balls, etc.
Professional soccer balls used are right around 15 ounces, so under a pound would be reasonable.
Soccer balls are made out of rubber
no
No
Soccer balls were made out of pig bladders back then.
there are over 10,000,000 soccer balls in the entire world