How to Throw a Two-Seam Fastball With a Wiffle Ball
- 8 years ago
How to Throw a Two-Seam Fastball With a Wiffle Ball. Part of the series: Baseball Tips & Facts. Throwing a two-seam fastball with a Wiffle ball will require you to grip the ball in just the right way. Throw a two-seam fastball with a Wiffle ball with help from a former Major League Baseball player in this free video clip.