TETHER KING
Train Smarter. Swing Harder.The Tether King by MantisPro
The Tether King by MantisPro is the fun, patent-pending baseball and softball training system that delivers thousands of quality reps — faster than any device on the market.
Improve your swing, hand-eye coordination, and confidence with every hit.
From youth players to college and pros, Tether King turns everyday practice into a challenge — anywhere, anytime.
Join us for Rep-Tober, and see how fast you can reach 10,000 reps!
Building Better Players — One Swing at a Time
Our mission is simple:
To help every player build confidence, strength, and precision through repetition and fun.
The Tether King’s revolutionary recoil system brings the ball back in seconds
The Tether King Lineup
· Beginner Series: Ages 6–9 – Perfect for developing coordination.
· Intermediate: Ages 9–12 – Builds rhythm, speed, and control.
· Advanced: Ages 13+ – For serious hitters ready to refine their power.
· MLB Pro: Adult and elite players – Designed for high-velocity recoil and max swing strength.
Each unit features a tethered recoil system that brings the ball back in seconds, allowing hundreds of reps per session and thousands per day — faster than any device out there.
Get In Touch
We’d love to hear from you! Whether you’re a player, coach, or organization interested in demos, camps, or wholesale opportunities — reach out and let’s talk
2942 N. 24th street
phx, az 85016