Champion OLB1 Official League Baseballs have a premium leather cover and Rubber / cork core. Polyester winding and raised seams.
OFFICIAL LEAGUE PREMIUM LEATHER BASEBALL - A great practice ball for 
high school physical education classes and youth leagues, the Champion 
Sports Official League Baseball is made with a rubber and cork core. It 
boasts a tough premium leather cover that can stand up to seasons of 
everyday use and polyester winding that helps it spring back into shape 
after even the hardest hits. Raised seams give the ball a classic look 
and feel in the pitcher's hand, and the tough leather baseball comes in 
packs of twelve for team drills and games.
- Premium leather cover is tough enough for everyday use
 
- Economical rubber/cork core is great for drills and practice games
 
- Polyester winding helps the ball spring back into shape
 
- Raised seams add a classic look and give players a better grip on the ball
 
- 1 Dozen Balls
 
- White/Red