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Total Control Sports Weighted Ball Set Includes 3.5, 5.5, 8, 11, 16, & 32 OZ Plyo Balls, This Baseball Training Equipment Will Increase Pitching Throwing Velocity for Any Sport Including Softball : Amazon.co.uk: Sports & Outdoors
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Plyo Soft Shell Weighted Ball Set 32, 21, 14, 7, 5, and 3.5oz-Pitching/Throwing Velocity Training for Baseball and Softball : Amazon.co.uk: Sports & Outdoors
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