Testimonials
Andy McKay
VP & ASSISTANT GENERAL MANAGER, Seattle Mariners
"I’ve been fortunate to have spent my entire life teaching in classrooms and coaching on baseball fields. I couldn’t recommend the Seam Stamp more. It is simple to use, provides immediate external feedback, and helps improve a skill that can impact your next baseball game. The Seam Stamp should be part of your coaching toolbox. "
Matt Kress
Pitching Coordinator, Driveline Baseball
"After a few years in the industry I thought I had a good idea of what pitch design was. However it wasn’t until i was introduced to Seam Stamp that I understood how silly a comment that was. After stamping a few baseballs and reaching out to others in the industry it became apparent how critical my knowledge gap truly was."