The Gains Hammer adds rotational resistance to every upper-body lift you already do, unlocks new movements you've never been able to load before, and eliminates grip fatigue. Higher muscle activation, less joint strain, more exercises in your arsenal. Clip it on and every rep works harder.
🔴 UPDATE: The first 500 VIP spots sold out faster than I expected, so I opened up 1,000 final spots. Drop your email to unlock 39% off — the deepest discount I'll ever offer — plus free lifetime access to the video library on my app (normally $9.99/mo). A $1 deposit holds your spot. It's fully refundable for any reason, but once these are claimed, the VIP price is gone forever. The most I ever discount physical products after launch is 20%, twice a year.
Get access to detailed video tutorials for all 75+ exercises on the Dr. Gains app — exact setups, angles, variations, and form cues, plus other proprietary tools and resources on the app. Normally $9.99/month. Free for life for VIPs.
After launch, this perk is gone — everyone else pays monthly.
Try loading rotation on a normal cable setup and you get uneven resistance and a cable dragging across your wrist. The Gains Hammer's grooved cam fixes both — mirroring your physiological strength curve through dozens of rotational movements, something that previously required specialized machines. Isolate rotation on its own, or add it to curls, extensions, raises, and flies for activation traditional equipment can't reach.
The cushioned base lets the sides of your hand press into deep padding instead of white-knuckling a handle. This offloads grip tension and redirects force straight through the target muscle for dramatically higher activation, and your biceps, shoulders, and back finally work to failure — not your grip.
A cable machine unlocks the widest exercise variety, but you're not locked into one. The Gains Hammer connects to dumbbells and weight plates with custom accessories — delivering full rotational training whether you're in a commercial gym or a corner of your garage.
Even on non-rotational lifts, the Gains Hammer's design adds a subtle rotational challenge your shoulders, elbows, and wrists have to control. Every press and pull quietly doubles as stability work — resilience you build without programming a single extra set.
A short loop for hammer-style lifts — compact enough for full range of motion while standing, where standard attachments run out of room. A D-ring strap for rotational training. Switch between them in seconds, across cables, dumbbells, and plate-loaded setups — one tool that never makes you choose.
Cable, dumbbell strap, or plate pin.
The side of your hand presses into the cushioned base, so tension goes straight to the target muscle — not into holding on.
Add rotation to any movement, isolate it completely, or run hammer-style lifts — resistance, activation and comfort no other attachment can match.
39% off · Free app video library · Ships within weeks
Engineered fiber-reinforced core, ultra-thick rubber exterior, and a 300+ lb rating at both attachment sites. However heavy you train, the Gains Hammer isn't the weak link.
Supercharge your isolation work with greater muscle activation — and none of the grip fatigue or pressure points that end your sets early.
Rotation is one of the body's most fundamental movement patterns — and the one nearly every training program overlooks. The Gains Hammer trains every upper-body rotation there is from forearms to shoulders, unlocking new athletic power and the balanced growth that conventional lifting leaves behind.
Strengthen the rotational movements everyday training neglects and build resilient shoulders, elbows, and wrists — your best defense against overuse injuries like tennis elbow, golfer's elbow, and rotator cuff strain.
Program a movement pattern your clients can't train anywhere else — and get them results their last trainer couldn't.
Every throw, swing, and grapple starts with rotation. Train it directly and gain an edge over the competition.
You've run out of ways to make a handle or straight bar harder. Reach the angles and movements no other attachment can hit.
I'm Michael Kamalu — founder of Dr. Gains, where over 260,000 people follow my work on YouTube. A 100th percentile MCAT score earned me a full scholarship to the Mayo Clinic School of Medicine, where I trained for two years before leaving to build the first of three 7-figure businesses in health & fitness.
For years, the same frustrations plagued my own training, my clients', and my audience's.
Every fix required a specialized machine or didn't exist at all. So I spent over three years, 17 prototypes, and exhaustive research designing the Gains Hammer myself — every curve, groove, and layer of it — until one attachment solved every issue.
— Michael
You can always change your mind and get your $1 back. But the chance to reserve 39% off will never come again.