2 3/4 Inch Barrel Diameter -10 Length To Weight Ratio 6-Star Premium Performance End Cap Improves Balance Balanced Swing Weight Features USSSA BPF 1.15 Certification ower up your game with this line of 2019 Louisville Slugger Omaha bats. With a resilient one-piece construction made of ST 7U1+ alloy, this 2019 Louisville Slugger USSSA Omaha 519 baseball bat combines a light swing weight and a massive sweet spot in a balanced design to give you the best of both worlds in speed and strength. Its 6-Star premium end cap extends the barrel length while maintaining a correct weight distribution, ensuring that your swings are always on point. On top of the already extended barrel, the Omaha 519 is constructed with a longer barrel design than previous years which means more plate coverage at the dish. Louisville Slugger: Others Make Bats, We Make History. Increase your batting average with this 2019 Louisville Slugger USSSA Omaha 519 baseball bat (WTLSLO519X10), which features a drop 10 length to weight ratio, a 2 3/4-inch barrel diameter, and the USSSA certification making this bat approved for travel ball and tournament play. If you enjoy a custom, comfortable overall feel, this USSSA bat is for you. This Omaha 519 baseball bat integrates LS Pro Comfort Grip technology, which keeps your hands locked in position for top-notch swinging precision