Quick view Tanner Weighted Ball /Plyo Balls (Single Weight) | 5, 9, 12 & 15 oz Weighted Baseballs Weighted baseballs add variety and complexity to your baseball or softball hitting practice to amp up your results. Choose a 3 pack or 6 pack of Tanner soft rubber, sand filled weighted baseballs. (Sometimes known as a plyo ball or plyocare weighted ball... MSRP: $18.00 - $40.00