Rawlings 5150 BBCOR Approved alloy barrel design utilizes proprietary metal forming techniques to optimize balance and trampoline. The Aerospace grade alloy formulation provides unparalleled durability in all playing conditions. This bat is both BBCOR and BESR certified. Details: Length: 33.5" Weight: 30.5oz. Barrel: 2 5/8" Ultra responsive 5150 alloy barrel Certification: BBCOR and BESR Drop: (-3) End Plug: Low Rider 105 MPH ultra tough Features: Aerospace grade 5150 alloy formulation provides unparalleled durability Frame: 1-Piece, 100% alloy frame Grip: Premium synthetic leather Handle: 7/8" tapered handle Level: Adult Series: 5150 Alloy Warranty: 1 Year