Quick Summary
The TRX Training Stability Ball is a 55 cm exercise ball for workout and balance-based training. It is designed for core work, posture-focused exercise and general gym use, and it arrives deflated in the box.
The 55 cm size is one of two stated sizes in the range. The other size is 65 cm, so the selected size should match the intended user height and setup before choosing an offer.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Brand | TRX |
| Product type | Stability ball / balance ball / exercise ball / yoga ball |
| Size | 55 cm diameter. Check this against the space and the way you plan to use it. |
| Other stated size | 65 cm is also mentioned for the same product range, so the chosen size matters. |
| Condition on arrival | Ships deflated, so inflation is part of first use. |
What to Compare Before Buying
- Size: This version is 55 cm. Compare that with the size you need for your height and exercise setup.
- Included configuration: Check that the selected offer is the 55 cm ball if that is the size you want.
- First use: The ball ships deflated, so plan for inflation before training.
- Use case: It is positioned for core, balance and general workout use, so compare it with the type of exercise you plan to do.
Before You Decide
Confirm the 55 cm size matches your needs and that the offer is for the ball in that size. Because it ships deflated, allow time for inflation before use. If you want a different fit, the 65 cm version is the other stated option.





