8oz. Original ProCut™ Strap-On Model Swing Weights $29.95 + $5.00 Shipping and Handling Strap-On Counter Weight For beginners to 12 yrs. old - We like to use 8oz. in all tee work, side toss, short toss, and even batting practice drills. Every swing the hitter feels their hands swing the bat right. The weight is always reinforcing and strengthening the hands. The weight is not too heavy, so players can swing a lot with out hurting their swing. Advanced Players 13 yrs. old to Pro - We use it most in short toss drills and batting practice. The hitter has the lightest weight always helping their swing and feeling more of the head of the bat. reinforcing and building strength all great hitters have. You can use any of our heavy hitting balls with this weight. Item # 65L6WK