I make it for my son who started baseball.
Is there any more fun baseball training tool?
Gyrospeed started with this question.
Gyrospeed was created by Tae Hoon Kim, a lover of baseball.
When his young son took an interest in baseball, he was overjoyed— however, he quickly noticed that due to his young age, there weren't many ways for him to safely practice at home or outdoors. Within the industry, expensive baseball academies and programs have always been questionable in terms of their effectiveness, so Tae Hoon didn't want to take this route for his son either.