Cyrtomium falcatum. 1  Aptly named, Japanese holly fern produces fronds that do indeed resemble holly leaves with their glossy, deep green leathery appearance. 2  It needs moist but well-drained soil in a protected location to thrive. 3  It also makes for a good houseplant in climates where it isn't hardy.
A baseball bat is a third-class lever because the fulcrum is on the  end of one side, the effect force is in the middle, and the  resistant force, the load, is at the top.
Therefore the bat will commonly be known as a Drop 10oz. 30-20 = 10oz. This will help determine the players comfort zone by length and weight. Please click on the -10oz under the Shop by Drop under the Youth baseball bats. On the middle of the page left side of the screen you will see By Length/Weight. Under that you will see the sizes available, click on the word more to see all the sizes.