The 2017 Easton Mako Beast Youth Baseball Bat 31/19 is 31 inches long and has a 2.25-inch barrel diameter. This bat features Thermo Composite Technology with expanded speed barrel design that offers a huge barrel and incomparable swing speed. It has a super-slim composite handle with a 1.2-millimeter Easton Hyperskin grip. This type of grip offers you stability for every type of contact. Ideal for kids, this baseball bat weighs 30 ounces.