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The ProNine weighted sand ball at 5.25 oz is the hand-size ball of the line: 5.25 oz packed into a 1.96 inch diameter ball. A durable rubber shell wraps a special sand material filling, built for hitting drills: used for front and side toss, long…

The ProNine weighted sand ball at 5 lbs is the heaviest ball ProNine makes. A durable rubber shell wraps a special sand material filling, built for throwing programs that develop arm strength: used for front and side toss, long lasting, safe in normal training use,…

The ProNine WTB9-10 is a 10 oz weighted training baseball in regulation 9 inch size: leather cover, medium seam, and a cork and rubber weighted center. ProNine builds it for throwing programs, and the mustard yellow color makes sure a weighted ball never gets mixed…