Start your fitness journey.
No gym required.
The Qmulus Cube gets you from zero to consistent. 50+ guided exercises, a safe inflatable surface, and a setup time under 60 seconds.
Starting out is hard enough, so we removed every barrier. No complicated equipment, no intimidating gym floor, no punishing hard landings. Just unfold and train.
Shop Pay · 4 × $74.75 interest-free · or $27.18/mo
30-day money-back · Free US shipping · 2-year warranty
440 lb rated, commercial quality.
Never wobbles, never buckles. Same load standard as commercial plyometric equipment. High-pressure air chamber stays firm and stable to 440 lb.
Inflates in under 45 seconds.
Electric pump included. Firm, stable surface with zero wobble under full load. Deflates and folds to disappear into a closet.
The Cube that fits your life.
Four audiences. Four distinct barriers. One product that removes them all, differently.
Starting from zero
The Cube ships with a 50+ exercise guide written for people starting fresh. Clear progressions, no jargon, no punishing landings on hard surfaces.
- 50+ beginner-friendly exercises included in the box
- Inflatable = softer landings, better for joints and confidence
- No gym required. Train at home, on your schedule
"The cube is half my height and I can still carry it with one arm. I expected flimsy. It is the opposite."@katieerighn · lululemon ambassador
Competitive or ex-competitive
440 lb capacity. Rigid under maximum load. The Cube absorbs the hit on a missed rep deep in a WOD, so your mechanics stay clean and your confidence stays intact, set after set.
- 440 lb capacity, commercial-grade under serious load
- Air-cushion forgives the late-WOD missed rep
- Removes the mental block on higher box heights
"You can inflate it, deflate it real quick, and it's so safe for these shins. This box is nice and sturdy, it's safe to jump on."@_coachcap · coach
Time-scarce
The Cube unfolds in 60 seconds, folds flat when you're done. No commute, no closing times, no membership to cancel. Just train when you have 20 minutes.
- 60-second setup fits any gap in your real day
- Under 5 ft² of floor, stores in a closet or car trunk
- Pays for itself in about 4 months vs gym membership + commute
"We always get excited to test out new equipment in the studio. We loved all the things we can do with the cube."@mrqueencity · training studio
Joint-conscious
The inflatable surface absorbs impact instead of transferring it to knees and hips. No sharp corners. No hard landings. Designed to give you your confidence back.
- Inflatable = impact absorption, far gentler on joints
- No sharp corners, safe if you stumble or miss
- Low-impact guide for joint-friendly progressions
"The cube is half my height and I can still carry it with one arm. I expected flimsy. It is the opposite. Now I jump without that flinch before every rep, and my shins have stayed clean."@katieerighn · lululemon ambassador
See what the Cube actually saves you.
Adjust your current fitness spend. The calculator shows your real payback period and total savings.
Based on your inputs · Cube priced at $299
Wood bruises you. Foam slips on you. Qmulus does neither.
Every plyo box forces a trade-off between solid and safe. We deleted the trade-off.
Wooden Box
- Sharp rigid edges shred shins on a missed rep
- Heavy and bulky, dominates your space permanently
- No impact absorption, all force hits your joints
- Painful and intimidating to miss a rep
- No portability, stays where you put it forever
Foam Box
- Surface slips and shifts during explosive jumps
- Compresses unevenly, killing your push-off power
- Soaks up sweat, breaks down over time
- False sense of stability = real injury risk
- Still bulky, solves nothing on storage
Qmulus Cube™
- Shock-absorbing top softens every landing, no scrapes
- Non-slip grippy base, it does not move
- High-pressure air chamber stays firm and stable to 440 lb
- Miss a rep without paying for it in bruises
- Inflates in 45s, deflates and disappears into a closet
It's not a better box. It's the only box that travels with you, stores itself, and forgives the jump you almost missed.
Box jumps: the highest injury rate of any single CrossFit exercise.
More than any other movement (Stein et al., 2024), and 100% of the study's lower-leg wounds came from a box. The Cube's soft top collapses the worst case from "ER trip" to "bounce off and try again."
Effortless every single time.
Unbox & unfold
Remove the Cube from its base, which doubles as your stabilizing carry case. Attach the included high-speed electric pump. No tools, no instructions needed.
Zero assembly · no toolsInflate in 45 seconds
Plug in the pump and go from packed to a pro-level platform in under a minute. No manual effort, no breaking a sweat before your workout starts.
Under 45 seconds
Train, deflate, store
Jump, step, and push hard. When you're done, deflate in seconds, fold it back into the case, and slide it into a closet. No clutter, ever.
Closet-sized storageFrom flat-packed to jump-ready in one take.
A 60-second product film: unbox, inflate, train, store. No edits, no tricks. Real time.
Three principles in every Cube.
The non-negotiables that shaped the product, and everything we ship next.
Safety without compromise
Protection should never cost performance. Every Qmulus design holds full power and forgives the miss, so confidence is built in, not bolted on.
Engineered, not improvised
Patented air-chamber design, real-world athlete testing, obsessive iteration. We solve the root problem instead of softening the symptom.
Built for real life
Training shouldn't depend on a dedicated room. 45-second setup, closet-sized storage, go-anywhere portability, so consistency actually happens.
Real stories, by who you are.
Pick the path that sounds like yours and hear from someone who started exactly there.
"Box jumps without the box bumps. Thousands of hours of training went into this, and it shows the first time you land on it."
"You can inflate it, deflate it real quick, and it's so safe for these shins. This box is nice and sturdy, it's safe to jump on."
"We always get excited to test out new equipment in the studio. We loved all the things we can do with the cube."
"The cube is half my height and I can still carry it with one arm. I expected flimsy. It is the opposite. Now I jump without that flinch before every rep, and my shins have stayed clean."
Real people. Real results.
Owners and coaches, in their own words on Instagram.
"Box jumps without the box bumps. Thousands of hours of training went into this, and it shows the first time you land on it."
"You can inflate it, deflate it real quick, and it's so safe for these shins. This box is nice and sturdy, it's safe to jump on."
"We always get excited to test out new equipment in the studio. We loved all the things we can do with the cube."
"The cube is half my height and I can still carry it with one arm. I expected flimsy. It is the opposite. Now I jump without that flinch before every rep, and my shins have stayed clean."
As seen on their feeds.
Real owners putting the Cube through real sessions. Tap any clip to watch, then shop the exact setup.
Training on a Cube? Tag @qmulusfitness and we may feature your session here.
Their Cube. Their proof.
Unfiltered photos and clips from real owners. The everyday training the Cube actually gets used for.
"Set it up in my apartment in under a minute. My downstairs neighbor hasn't complained once. That's the real review."
"First box jump in 3 years after my knee surgery. Filmed it because I genuinely didn't think I'd do it. Soft landing made all the difference."
"Storage was my whole hesitation. It lives on a closet shelf next to the towels now. Genuinely disappears."
Share your Cube
Post a photo or clip and get featured here, plus a discount on your next order.
One price. No surprises.
No subscriptions, no hidden fees. Buy once, train forever. Every US order ships free.
- ✓ Inflatable plyometric cube (patented design)
- ✓ High-speed electric air pump
- ✓ 50+ exercise guide
- ✓ Travel carry case (doubles as base)
- ✓ Free US shipping · 30-day guarantee
SOLO
- ✓ Qmulus Fitness Cube (orange)
- ✓ Electric pump + carry case
- ✓ 50+ exercise guide
- ✓ 2-year warranty
Power Duo
- ✓ 2× Qmulus Fitness Cubes, train with a partner
- ✓ 2× Electric pumps + 2× carry cases
- ✓ 50+ exercise guide + partner workouts
- ✓ 3-year warranty
Studio Trio
- ✓ 3× Qmulus Fitness Cubes, full studio setup
- ✓ 3 resistance add-on packs
- ✓ 12-week training program
- ✓ 5-year warranty
Buy with zero second-guessing.
Every way to pay, every reassurance you need, right where you decide.
Monthly payments from ~$27/mo. Split any tier into 4 interest-free payments, or choose a longer monthly plan. No hidden fees.
Shop with complete confidence.
We take your data and your money seriously.
Every page and checkout protected. Your data is never visible in transit.
We never see or store your card number. Highest level of PCI compliance available.
We never sell your data. Request, update, or delete your information at any time.
30-day full refund with free return shipping. Change your mind for any reason.
Frequently asked questions
Everything you need to know before you train.
What exercises can I do with the Qmulus Cube?
Is the Qmulus Cube stable enough for high-impact workouts?
Does it come with everything I need?
How long does it take to set up?
Can I use it outdoors?
How big is the Qmulus Cube when inflated?
How long does shipping take?
One Cube. Every workout.
Whether you're just starting out, training to compete, squeezed for time, or protecting your joints, the Cube meets you where you are.
Shop Pay · 4 interest-free payments of $74.75 · monthly plans available
★ 30-day returns · Free US shipping · 2-year warranty