The Pro Prime Signature Series KS12 features a tapered knob, standard thickness matte black handle and medium barrel profile that Kyle Schwarber trusts to deliver extra-base hits. An all-new surface hardening process, including our Professional Series Finish paired with UV light treatment, results in bats that are 30% harder than previous Louisville Slugger Prime models. The Pro Prime KS12 is accompanied by an industry-leading 75-day limited warranty. Restrictions apply. Visit the Limited Warranty page on slugger.com for complete details.