Features ST +20 Alloy. 2 34 Barrel. 78 inch tapered handle. IT'S BACK by popular demand and even better than ever----With trusted power and championship performance the OMAHA 515 is the most proven one-piece bat and most consistent high performance bat in baseball. Made with our exclusive premiere ST+20 alloy the OMAHA 515 delivers the right mix of undeniable power, a massive sweet spot, superior balance, maximum barrel flex and a lighter swing weight.