You think you can hit me?
300 reps. Nothing to chase.
No pitcher. No partner. Nothing to chase.
From $197. Free delivery and setup anywhere in Phoenix. 60-day money back.
How TetherKing works
You hit the ball. It tethers around the pole, recoils, and comes back to you in three seconds.
Hit
You swing. The ball takes off around the pole.
Tether
It tethers around the pole.
Recoil
The ball recoils and untethers.
Return
Three seconds after you hit it, it's back in front of you.
The numbers don't lie
What a session actually looks like.
- Between one hit and the next
- 3s
- Reps in a session
- 300+
- Balls to chase
- 0
- The record to beat
- 184
184 consecutive hits, set by founder Michael Pfeiffer.
Bring the reps home.
Bury the excuses.
Serious hitters put in serious reps. TetherKing gives you hundreds of them in your own driveway — no cage, no machine, nobody pitching.
The ball comes back in three seconds. You swing, it tethers, it recoils back to you. Nothing to pick up in between.
No cage. No pitching machine. No partner. One player, one bat, as long as they want to stay out there.
Switch-hitting is built in. Step to the other side and send it back the other way.
Metal pole on a commercial sign base. The same base that holds a sign up in a parking lot — 175 pounds filled. Not plastic.
Sixty days to change your mind. MantisPro pays the return shipping.
Built for real reps
Hundreds of hits a session puts real load on the hardware. Here's what carries it.
A commercial sign base
The Junior and Advanced stand on a commercial sign base from IdeaShield. It arrives pre-filled: 175 lb filled, 29 lb empty, 22" × 22" × 22".
A swivel that stops cord twist
The swivel between the woven cord and the latex tube keeps the cord from twisting.
A ball cap rebuilt after testing
A ballplayer knocked the ball off during testing. The cap was redesigned after that, and it's the one on every unit now.
Choose your system
The latex tube is the difference: a shorter tube for younger hitters, a longer one as bat speed grows.
Which one fits?
25" red tube
Junior Portable
- Ages
- 6–10
- Setup
- Portable weighted base
$197
See the Junior32" blue tube
Advanced Portable
- Ages
- 10–14
- Setup
- Portable weighted base
$272
See the Advanced32" green tube
Pro Sleeve System
Permanent in-ground install — all ages
$347
See the Pro
Free delivery and setup anywhere in the Phoenix metro, from Queen Creek to Cave Creek. Outside the Phoenix metro? Contact us for a shipping quote.
Just the assembly — $97
25" red tube
The cord, latex tube and ball on their own. No pole or base, and it doesn't mount to one. A partner swings it overhead for the batter. Ships anywhere.
Looking for one that mounts to a pole? The Pro Sleeve System sets into the ground, and its sleeve fits any 3-inch pole. See the Pro Sleeve
Compare the systems
| Spec | Junior Portable | Advanced Portable | Pro Sleeve System |
|---|---|---|---|
| Latex tube | 25" red | 32" blue | 32" green — sized for players 10 and up |
| Ages | 6–10 | 10–14 | Any age |
| Price | $197 | $272 | $347 |
| Install | Portable base | Portable base | In-ground sleeve |
| In the box | Pole, Weighted base, Cord, latex tube and ball assembly | Pole, Weighted base, Cord, latex tube and ball assembly | Pole, In-ground sleeve, Ground cap, Cord, latex tube and ball assembly |
| Pole height | 98 in | 98 in | 98 in |
| Pole | Metal | Metal | Metal |
| Base weight, empty | 29 lb | 29 lb | None — in-ground sleeve |
| Base weight, filled | 175 lb | 175 lb | None — in-ground sleeve |
| Base size | 22" × 22" × 22" | 22" × 22" × 22" | None — in-ground sleeve |
| Base fill | Pre-filled with water, gel or sand | Pre-filled with water, gel or sand | None — in-ground sleeve |
The record is 184.
Michael Pfeiffer hit the ball 184 times without missing. Start swinging and see how long you last.
184
consecutive hits
Standing record — Michael Pfeiffer, founder
Wake me when you're ready.
The ball is the opponent.
How to take the crown
- Film your run in one unbroken take, with the count visible or called out loud.
- No cuts. A miss ends the streak.
- Post it with #BeatTheKing — if you pass 184, the record board changes hands.
#BeatTheKing
Free delivery and setup
Order online and we bring it to you. Anywhere in the Phoenix metro, from Queen Creek to Cave Creek, delivery and setup are free.
1
We drive it out
Pick a delivery slot after checkout. We load the van and bring your system to your door.
2
We set it up
We put it together and make sure it's ready to hit.
3
We show you how
Before we leave, your player gets a lesson on using it.
Outside the Phoenix metro? Ask for a shipping quote.
It started on a business card
Michael Pfeiffer drew TetherKing by hand before there was a product — a pole, a tether, a ball, and someone swinging at it. Every unit sold today is built from that sketch.
He drew the mantis too. MantisPro is his company; the King is the ball you're trying to beat.
Our story
Michael's dad swung the ball for him to hit. That became the TetherKing assembly, and the assembly became the full system.
Read the storyQuestions
How does it work?
You hit the ball. It tethers around the pole, recoils, and comes back to you in about three seconds. Then you hit it again.
What's the difference between the models?
Start with how it's used. The Junior Portable and Advanced Portable stand on a weighted base you can move around the yard. The Pro Sleeve System sets into the ground, and its sleeve fits any 3" diameter pole. The Junior assembly has no pole at all: a partner swings it overhead for the batter. Between the two portables, the difference is the latex tube: a 25" red tube for ages 6–10 on the Junior, a 32" blue tube for ages 10–14 on the Advanced.
Where do you deliver?
Delivery and setup are free anywhere in the Phoenix metropolitan area, out to Queen Creek and Cave Creek. Outside the metro, contact us for a shipping quote.
What if it isn't for us?
You have 60 days from delivery. If the product is in fair condition, MantisPro pays the return shipping and you choose a replacement unit or a refund.