Created specifically for players ages 14 and under, Rawlings RLLB1 Raised Seam Baseballs are expertly constructed with cushioned cork centers with 15 percent wool windings and full-grain leather covers. When compared to flat seams, raised seams help improve your grip on the ball when pitching and fielding. These classic baseballs are the #1 choice of leagues, coaches, parents, and players in North America, helping young athletes play like the pros.