Practice and play like the pros with the Rawlings(R) Official League Baseball. The ROLB1 Official League Ball features a full-grain leather cover designed to withstand any playing condition. The composite cork and rubber center is designed for optimal performance and better durability, while red raised seams allow for an improved grip on the ball. The ROLB1 is intended for practice at the high school and institutional level. FEATURES Cover : Grade C full grain leather for excellent durability Core : Composite cork and rubber pill Stitching/Seams : Red raised seams for improved grip League/Certification(s) : Official League; practice grade Balls included per purchase : Individual Recommended Age : Adult (high school and college) Model : ROLB1/R14U Rawlings