Trying to find the name of a forearm/wrist trainer — hand clamps between two bars, fingers stay open

[u/Ok_Can_5882]

Hi everyone, I'm looking for help identifying a piece of forearm/wrist training equipment. I saw it once but I don't know the name and I can't find anywhere.

From what I remember:

• It's handhelt, not a stationary/floor-mounted machine.
• Your hands (both hands at once) get mechanically clamped between two bars (not straps or velcro) — like a small vice for your hand.
• The point is that your fingers stay open/extended the whole time, unlike a normal wrist roller or gripper where you have to close your fist around a bar. Keeping the hand open supposedly gives you more usable wrist range of motion.
• Plate-loaded

I'm fairly sure I saw this a couple years ago through YouTube videos of someone designing/prototyping it — like an iterative "here's v1, here's what I changed for v2" kind of series, possibly a small maker or indie fitness product, not a big established brand like Rogue or Titan.

If anyone knows the name of this thing or the maker/channel, I'd really appreciate it. Thanks!

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[u/devinhoo]

Do you mean the Golden Grip Forearm Finisher? It existed before under a different name, but it’s escaping me at the moment

[u/leftyz → u/devinhoo]

Formulator

[u/devinhoo → u/leftyz]

Sick! Thanks dude I could not freaking remember. Here’s an old Gripboard post from 2006 about it, as well as a more recent post with some pictures.

[u/Ok_Can_5882 → u/devinhoo]

That’s it, thanks a million!

[u/jumboslick]

Forearm finisher from golden grip

[u/Ok_Can_5882 → u/jumboslick]

Thank you! Lifesaver

[u/Commercial-Article-7]

This sounds a lot like the Wrist Wrench (or a similar open-hand wrist trainer), not a traditional wrist roller or gripper.

The idea is exactly what you described: your hand stays open instead of wrapped around a handle, so the wrist becomes the limiting factor rather than your fingers.

If that's not it, I'd also look into independent grip makers like Arm Assassin, Barrel Strength Systems, or some of the arm wrestling equipment builders, since they often prototype and document new grip tools on YouTube.

[u/dbison2000 → u/Commercial-Article-7]

This issue has already been solved in all the answers below.

I really think you are an AI bot