Used 2021 Louisville Slugger Solo 10 USSSA Baseball Bat Black Silver 29 19 tiny smudges on the barrel. resulting in faster cuts and One Size:Leather resulting in faster cuts and quicker lateral movements Molded ethylene vinyl acetate insole shapes to the foot and provides extra comfort New quickframe plate was developed from a player study that tracked on field movements over an entire season and includes a gradual increase in flex toward the forefoot Para flex+ composite construction for more precise weight distribution 3Fusion end cap reduces weight at the end of the bat for a more balanced swing X lite knob is ergonomically designed to perfectly fit players' hands 7 year olds to 12 year olds could possibly use it Bat Benefits This bat is made in the one piece design with the SL Hyper Alloy going from the knob up to the end cap