100% maple wood exterior with two-piece inner composite tube system AP5 turn model 2 5/8 inch barrel diameter BBCOR certified, NCAA, NFHS, & Perfect Game approved 90 Day manufacturer's warranty. The all new AP5 Hybrid from Marucci features a 100% maple wood exterior with AP5 turn model profile and two-piece inner composite tube system to create an authentic, traditional feel and sound of a wood bat with the benefits of composite technologies. Comes with a 90 day manufacturer's warranty from Marucci. - Two-piece inner composite tube system provides increased durability and increased performance - 100% maple wood exterior provides authentic, traditional feel and sound of a wood bat - AP5 turn model profile features a large barrel, along with a tapered knob and handle to produce a slightly end-loaded feel - 2 5/8 inch barrel diameter - NCAA, NFHS, & Perfect Game approved - BBCOR certified - 90 Day manufacturer's warrant.