Marucci JR7 Maple Baseball Bat The JR7 is the perfect bat for those who prefer a thin handle, but not an end-loaded feel. The traditional barrel ensures balance from knob to cup, so you can swing with confidence. Every Marucci wood bat is handcrafted from top-quality maple, bone rubbed for ultimate wood density, and Ink Dot certified. "From the garage where they began until becoming the Number One bat in baseball, Marucci's commitment to quality has never changed." Albert Pujols, Member of Player Advisory Board.