Marucci Cat9 Connect MCBCC9 USSSA Baseball Bat 32/29. Good pre-owned condition with normal playing wear. No dents or dings. Please check out all of the pictures for condition and message me if you have any questions or would like to see additional pictures. The BBCOR Marucci Cat 9 Connect 29 Ounce bat is a high performance, ultra high tech baseball bat for college and high school play. A composite handle makes this bat a “Hybrid” design. The OLS (Outer Locking System) connection piece uses the stiffest construction material available, so you won’t lose the traditional solid feeling of hitting when hitting, all while the OLS system prevents sting and vibration from ever reaching your hands.