Set the standard on the field this season as you play with the Diamond(R) DOL-A Official Baseball. The NFHS(R) Ball is constructed with a premium leather cover, cushioned cork center, and grey wool blend windings for outstanding durability and consistent play. Ball Features and Specifications: Cover: Premium leather for enhanced durability Core: Cushioned cork Windings: A-grade grey wool blend Stitching: Diamond Seam(TM) (raised red seams) for excellent control and grip League/Certification(s): NFHS(R) approved and licensed Recommended Age: Adult