A 22cm air-filled pilates ball that adds genuine challenge to both mat and reformer work. At that diameter, it sits in the sweet spot for core engagement and stability training — compact enough to position precisely under your lower back, between your knees, or behind your thighs, yet substantial enough to activate the deep postural muscles that a flat mat alone cannot reach.
The soft, responsive surface works two ways: squeeze it to increase the intensity of inner thigh and abdominal exercises, or rest against it to add gentle support during spinal extensions and side-lying movements. That dual function is what makes the pilates ball one of the most useful props in a home studio. You can use it to progress movements you have already mastered, or to modify positions while you are still building strength and body awareness.
Pilates with a small ball is particularly effective for isolating muscles that larger equipment tends to miss. Placing the ball between your knees during a hundred series deepens adductor activation. Sitting on it during seated exercises introduces subtle instability that asks your stabilisers to respond in real time. These are techniques used in studio settings that translate directly to home practice with nothing more than this single prop. It is also a reliable tool for yoga, floor-based Pilates sequences, and posture work at your desk.
What size pilates ball should you choose? The 22cm diameter is the standard for classical Pilates prop work and the size most instructors recommend for both mat and reformer use. It works across the full range of exercises from beginner fundamentals through to advanced sequences, and suits adults of all heights. If you are new to Pilates, this is the size to start with; if you already have a regular practice, this is the size you will keep reaching for.
Each exercise ball for Pilates arrives with an inflation straw and plug so you can adjust firmness to suit your preference. A softer inflation gives more surface give and a gentler challenge; firmer inflation increases instability and resistance. Both are valid approaches depending on your session focus and current level. Feel the Your Reformer difference.
Available in a considered palette: Black, Beige, Blush, Sage, Mocha, Dusty Rose, Sky Blue, Seafoam Green, Butter Yellow, and Espresso. Each shade is chosen to sit naturally in the spaces where you practice, so the ball works as a considered part of your home setup rather than an afterthought.
- Diameter: 22cm, the standard for Pilates prop work
- Inflation: Includes straw and plug; adjust firmness to suit your practice
- Construction: Soft, anti-burst material that holds its shape across repeated sessions
- Use cases: Core activation, inner thigh work, spinal support, balance and stability training, mat Pilates, reformer Pilates, yoga, and desk-based posture exercises
- Suitable for: All levels, from first-time practitioners through to regular studio movers
Pairs Well With
The Your Reformer pilates ball works alongside your reformer as a complementary prop, adding instability and targeted muscle activation to exercises that the machine alone does not isolate. It is a natural addition to both the YR Original Reformer and the YR Original Folding Reformer setups, rounding out your home studio with a low-footprint tool that genuinely extends what you can do on and off the carriage. Add it to morning flows before work, weekend sessions, or evening wind-downs when you want a focused, intentional practice without setting up larger equipment.
Care
Wipe down with a damp cloth after each session. Keep the ball out of direct sunlight to protect the colour over time.