A lineup that has been 135 years in the making, the 2021 Louisville Slugger® MLB® Prime Series Wood Bats benefit from top-class materials, extensive bat knowledge and continued innovation to push performance at the game’s highest level. This signature series bat is designed after Ronald Acuna Jr.’s game model, which adopts a large I13 barrel and a traditional AJ10 handle for a slightly end-loaded feel. Prime Cuts: EXOPRO™ Finish: New coating technology provides a mirror-like finish while hardening the bat’s exterior for extended durability Maple construction features a highly dense composition that maximizes its external hardness Craftsman-Style Cup: Curbs breakage and maintains hardness on contact Bone rubbing process compresses every cell to ensure superior surface hardness Signature Series RA13 Model: Pairs an AJ10 handle and I13 barrel for a slightly end-loaded feel Easy-to-Read Knob: Medallion embedded in the knob indicates grade of wood, species, and length All new seamless decals provide a more pristine look, using technology to apply the logos and graphics under the top coat NOTICE : Baseball/Softball Bats are only eligible for return if they have not been used.