I don’t see an image attached here, so I can’t verify exactly what object you’re referring to.
But based on your description, the Decathlon Pilates and Fitness Abdo Ergo 100 is a sit-up assist device designed to help support your feet and reduce strain while doing abdominal exercises. It’s commonly used for:
- Sit-ups and crunches
- Core strengthening workouts
- Helping beginners maintain proper form
If you want, you can upload the image, and I can confirm whether it matches this device—or help you identify a similar one.
