Fill it a quarter full. That's your starting weight.
The water moves as you lift, so your balance trains on every rep. Add water as you get stronger.
- Free shipping
- 60-day money-back guarantee
- App + course included
A dumbbell sits still. Water doesn't.
Fill the tube part-way and the water slides on every rep. Your body corrects it the whole time, and that correcting is the balance training.
Pick what arrives at your door
One size, three packages. Every tool fills from a few pounds up, so the weight is always yours to set.
What's in the box
Ships in one box with the pump. Fills from an ordinary tap.
Eight things a moving weight trains.
You are working balance and strength in the same rep, without changing exercise.
Steadier on your feet
Your feet and ankles get constant practice reacting to a load that moves.
Start where you are
A quarter full is a few pounds. Nothing forces you to lift more than that.
Kind to joints
Soft, adjustable load instead of hard metal you have to catch.
Grip that holds on
Carrying a shifting weight trains grip without a separate exercise.
A trunk that braces
Your midsection works to keep the load under control, seated or standing.
Conditioning without the pounding
Carries and swings raise the heart rate with nothing to land on.
Reach and turn with confidence
Controlled rotation under light load — the movement daily life keeps asking for.
Empties and stores flat
Drain it and the whole set fits in a drawer. No rack, no clutter.
Easy to start with.
No rack, no subscription, no commitment.
Fills in about a minute
Screw valve and a pump in the box. Ordinary tap water, nothing to buy.
Follow along
The app and starter course come with it. No subscription and nothing to cancel.
Sixty days to decide
Money-back guarantee, and shipping is free. Train with it and see.
Questions people ask first.
I haven't trained in years. Is this too much?
Start with the tube a quarter full. That is a few pounds. You add water when it begins to feel easy, and not before.
I have sore knees and shoulders. Will this hurt?
You set the load yourself, so there is no fixed heavy weight to fight. Many people start seated with the sphere and move to standing work later. If you are recovering from an injury, check with your doctor first.
Is one size right for me?
The tube fills from a couple of pounds up to 25 lb, so you set the weight — most people never run out of room. Want the bigger tube? The Fitness System runs the same packages in a Standard size that fills to 49 lb.
How long does it take to set up?
About a minute per tool with the pump that ships in the box. Drain it through the same valve when you are done.
Where do I keep it?
Empty. Drained, the tube rolls up and the whole set fits in a drawer or a cupboard.
What if I don't get on with it?
Send it back within 60 days for a full refund.






