Most guys skip the gym because walking in as a beginner feels like showing up to the wrong party. ONYX was built for the guy who's done waiting.
The ONYX Training Trilogy
- Hydraulic resistance 22–440 lbs
- Full upper body activation in 15 min
- No gym, no commute, no judgment
- Compact enough to use anywhere
90-Day Money-Back Guarantee
See it in action
Marcus D.
"I sit at a desk 9 hours a day and my posture was embarrassing. Two weeks with ONYX and my shoulders are already sitting differently. My wife noticed before I did."
Getting Stronger Shouldn't Require a Gym
You told yourself you'd start going to the gym. Maybe you even went a few times. Then life got in the way. The commute. The crowd. Standing in the free weights section not knowing what you're doing while everyone else looks like they've been lifting since high school. So you stopped. Not because you gave up — because the gym was never actually built for someone just starting out. ONYX was.
The Trainer That Finally Fits Your Life
Most guys don't skip working out because they're lazy. They skip it because everything requires the gym. The app didn't stick. The weights collected dust. Monday kept getting pushed to next Monday. This is different. 15 minutes. Your home. No audience. No judgment.
Smooth Both Ways. Zero Recoil.
Hydraulic resistance works on the push AND the pull. No snapping back. No joint strain. Just clean, controlled tension every rep.
Full Upper Body. 15 Minutes.
Chest, shoulders, biceps, triceps, core — one device, one session. No rotating equipment, no wasted time.
Home. Hotel. Office. Anywhere.
12 inches folded. Fits in a backpack. Works wherever you have arm-width of space — no excuses left.
Starts Easy. Gets Brutal.
22 lbs to 440 lbs of resistance. Beginners start low and scale up. The device grows with you — you'll never outgrow it.
The Numbers Don't Lie
Real results from real guys who skipped the gym.
The Numbers Don't Lie
Real results from real guys who skipped the gym.
30k+
Men using ONYX to build muscle from home — no gym required.
15 Min
Average daily session time. That's all it takes for a full upper body workout.
30 Days
The timeframe most users report visible changes in their chest, shoulders, and arms.
* Based on customer feedback and product reviews.
How to Use ONYX HydraForce
Set Your Resistance
Dial in anywhere from 22 to 440 lbs. Beginners start low, progress at your own pace.
15 Minutes a Day
Chest press, shoulder expansion, bicep curl. Full upper body activation in one session.
Visible Results in 30 Days
Consistent daily use builds real muscle density. Most users see visible changes in 3–4 weeks.
Set Your Resistance
Dial in anywhere from 22 to 440 lbs. Beginners start low, progress at your own pace.
15 Minutes a Day
Chest press, shoulder expansion, bicep curl. Full upper body activation in one session.
Visible Results in 30 Days
Consistent daily use builds real muscle density. Most users see visible changes in 3–4 weeks.
Why Serious GuysChoose ONYX
Here's why we're the industry leader → One device. Everything the gym requires — without the gym.
Why Serious GuysChoose ONYX
Here's why we're the industry leader → One device. Everything the gym requires — without the gym.
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ONYX
Original
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Others
Spring Twisters & Gym Equipment
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Hydraulic resistance
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No recoil / no snapping
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Converts to ab roller
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22–440 lbs adjustable
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Lifetime warranty
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Costs $$$ monthly
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Real Guys. Real Results.
Carlos M., 29,
Verified Buyer
"Bought this on a whim after seeing it online. Three weeks later my chest and shoulders look completely different. My girlfriend asked if I'd been going to the gym. I haven't stepped foot in one."
ONYX™ HydraForce Muscle Trainer
$99.00 $179.00
Purchased on March 14th, 2025
Greg T., 52,
Verified Buyer
"I'm 52 with bad knees and the gym was never going to happen for me. This thing hits my chest and shoulders harder than I expected. Six weeks in and I can see the difference every morning."
ONYX™ HydraForce Muscle Trainer
$99.00 $179.00
Purchased on March 14th, 2025
Darius K., 34,
Verified Buyer
"Travel for work 3 weeks out of every month. This fits in my carry-on and I've used it in hotel rooms across 8 states. No excuses left when your gym fits in your bag."
ONYX™ HydraForce Muscle Trainer
$99.00 $179.00
Purchased on March 14th, 2025
Money-Back Guarantee
If the ONYX HydraForce Trainer doesn't visibly change your upper body strength and posture within 90 days of consistent use — we'll refund every penny. No hoops. No hassle. No questions asked.
CLAIM NOW
90-Day Guarantee
Free Priority Shipping
Lifetime Warranty
Money-Back Guarantee
If the ONYX HydraForce Trainer doesn't visibly change your upper body strength and posture within 90 days of consistent use — we'll refund every penny. No hoops. No hassle. No questions asked.
CLAIM NOW
90-Day Guarantee
Free Priority Shipping
Lifetime Warranty
Frequently Asked Questions
Find answers to common questions about our products, shipping, returns, and more.
I've never trained before — is this too advanced?
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How is hydraulic resistance different from a spring twister?
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To place an order, simply browse our products, add items to your cart, and proceed to checkout. You can review your order before finalizing your purchase.
How long until I see results?
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To place an order, simply browse our products, add items to your cart, and proceed to checkout. You can review your order before finalizing your purchase.
How much space does it take up?
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To place an order, simply browse our products, add items to your cart, and proceed to checkout. You can review your order before finalizing your purchase.
Can I use this if I have shoulder issues?
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We accept major credit cards, PayPal, Shop Pay, and Apple Pay for your convenience and security.
What's your shipping and returns policy?
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To place an order, simply browse our products, add items to your cart, and proceed to checkout. You can review your order before finalizing your purchase.
How is hydraulic resistance different from a spring twister?
+
To place an order, simply browse our products, add items to your cart, and proceed to checkout. You can review your order before finalizing your purchase.
How much space does it take up?
+
To place an order, simply browse our products, add items to your cart, and proceed to checkout. You can review your order before finalizing your purchase.
What's your shipping and returns policy?
+
To place an order, simply browse our products, add items to your cart, and proceed to checkout. You can review your order before finalizing your purchase.