Pro Nine CR Cal Ripken League Official Game Baseballs have a Precision Raised Seam, Premium Grey Wound Wool and a Cushioned Cork center. Meets All C.O.R and Compression Requirements. For post season & tournament play.

Pro Nine CR1 Cal Ripken League Official Game Baseballs have a Precision Raised Seam, Select Grey Wound Wool and a Cork and Rubber Center. Meets All C.O.R and Compression Requirements. For regular season play.