// Pro-grade gray wool windings and a premium leather cover make this the top-of-the-line baseball. Proprietary winding technology creates a more durable, high compression core for the best performance. Cushioned cork center. Recommended for collegiate and high school play. You can only achieve Perfection by designing for athletes, using the best raw materials and paying attention to every detail. Were proud to have the Perfection Pro Baseball as part of our Perfection Series. Approved by NFHS (National Federation of State High School Associations) Approved by NOCSAE (National Operating Committee on Standards for Athletic Equipment) Sold in dozens. Model # 3B-PPRO