• The Markwort The Learning Curve Training Baseball: FIN by Markwort is a white ball with red rubber curved sides. Close-ups show how to grip this curveball training aid from various angles to help improve pitching technique.
  • The Markwort The Learning Curve Training Baseball: FIN by Markwort features a red curved guide and packaging that promotes its use as a curveball training aid for pitching and hitting practice, with instructions to improve your curveball skills.
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Markwort

Markwort The Learning Curve Training Baseball: FIN

Markwort The Learning Curve Training Baseball: FIN

$11.99 USD
$14.99 USD $11.99 USD
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  • Teaches Mastery of the Curveball. Easy to Use Training Aid for Pitchers and Batters.
  • The "Fin" Makes it Easy to Throw the Curveball.
  • Develops Pitching and Hitting Skills.
  • Durable Rubber Construction Makes Ball Easy to Grip while Teaching Proper Finger Placement and Hand Motion to Throw a Curve Ball.
  • Increases the Curve Rate to Provide Pitchers with Greater Visual Feedback to Help Improve the Learning Process.
  • Provides True Pitching Motion and Visible Ball Rotation to Help Batters Improve their Curve Ball Hitting Skills.
  • Recommended for Use with Pitchers Ages 12 & Up and for Batters of all Ages.
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