12oz. ProCut™ Screw-On Weight Swing Weights $32.95 + $5.00 Shipping and Handling Screw-On Counter Weight Players (8 yr. old - 12yr.old) - For the younger hitters we recommend first practice swing with the weight in place to loosen up and feel how the bat should swing. Then hit off a tee. Some coaches use it in side-toss and short-toss drills. Be aware that younger hitters might get tired sooner. Players (13 yr. old - pro) - With the addition of the custom wood bat, this weight is great for tee work but we find it most effective in side-toss drills. This is the most popular weight for both baseball and softball players . From one-hand drills to warm up with, to rapid-fire with the wheeler-dealer side-toss machine (below), hitters get a great work out. You can use any of our heavy hitting balls with this weight. *For use with a ProCut Custom Bat. Contact us to custom-fit your bat with the ProCut system. Item # 65L7CL