ProSource Core Balance Disc Trainer, 14 in(ps-2143-bd-red)

An inflatable disc whose difficulty you set yourself: let air out and it is nearly a firm pad, pump it up and it is genuinely unstable. That adjustability is the reason to choose a cushion over a foam pad — you can start easy and progress without buying twice.
What it gets right
- You control the challenge by inflation level, so it grows with you
- Published 14 in diameter, 3 in height, 2.2 lb — all three numbers stated
- Hand pump included, so no separate purchase
- Works as a seat cushion too, which is how most people get regular use out of one
What to know first
- PVC, not foam, so it will feel like a beach ball at high inflation
- No published weight capacity
- A round 14 in disc is a one-foot or narrow two-foot stance, not a wide one
- Inflatables lose air slowly and need topping up
Fit-to-You: the nine measurements
ProSource does not publish 1 of 6 of these. Where that is the case, this panel says so rather than guessing. How we compile these
- ThicknessPad height sets the difficulty. Too tall is not 'more effective', it is a fall.
- 3 in at full inflation, and lower as you let air out
Source: Amazon product listing data (Creators API) · read 2026-08-13
- Standing surfaceWhether there is room for two feet, or only one.
- 14 in diameter
Source: Amazon product listing data (Creators API) · read 2026-08-13
- Weight capacitySearched directly, and two of the senior-focused competitors omit it entirely.
- Not published by the manufacturer
- FirmnessA pad that bottoms out gives no training effect; one that is too soft is unstable.
- Set by the user via the included hand pump; no firmness scale published
Source: Amazon product listing data (Creators API) · read 2026-08-13
- Non-slip baseWhether you need something solid to hold while you use it — and most people do.
- Dual-textured PVC — raised massaging bumps one side, smoother bumps the other
Source: Amazon product listing data (Creators API) · read 2026-08-13
- Needs support nearbyWhether you need something solid to hold while you use it — and most people do.
- Yes, and more so than a foam pad at high inflation
Source: Amazon product listing data (Creators API) · read 2026-08-13
We have not used this machine. Everything above comes from the manufacturer’s published documentation and the dated retailer listing, with the source given for each figure. Where they don’t publish a number, we say so. We can’t tell you how it feels to ride, how quiet it really is, or how it holds up after two years — and anyone who tells you otherwise without owning one is guessing.










