Markwort 12-Inch Weighted Training Softball Set Leather Cover - Set of 4 Balls No Errors Sports Are you using your upper

Are you using your upper body to generate more power

A significant aspect of mastering baseball is repetition

90% kevlar yarn winding core

and mentally energized throughout the day

every plate is within 2% of the stated weight to deliver the accuracy that serious lifters demand

Markwort 12-Inch Weighted Training Softball Set Leather Cover - Set of 4 Balls No Errors Sports Are you using your upperIncludes four weighted softballs: 5 oz, 6 oz, 7 oz, and 8 oz for progressive strength training Durable full grain leather cover with raised seams for a game realistic grip and feel Ideal for improving throwing mechanics, arm strength, and warm up routines 12 inch size matches regulation softballs for consistent training results