LOUISVILLE SLUGGER PRO PRIME MAPLE RA13 BASEBALL BATThe Pro Prime RA13, a maple baseball bat with a slightly loaded end weight, is beloved by hitters from the big leagues to summer leagues across the country. A pearl white handle transitions to a teal barrel that perfectly showcases white Seamless Decals. A re engineered surface hardening process, including our Professional Series Finish cured with UV light treatment, results in bats 30% harder than previous Louisville Slugger Prime models.