The material is very resistant and does really offer you a great friction with the floor helping stability, however, the 22 inches is super small. I followed the chart saying that for 5’3 high people the 22 inches (55mm) was the perfect size but is definitely way too small. In the picture I added another ball I have that is 85mm, but that was way to big. I believe the perfect size for everyone (no matter your height) is 75mm which is the 30 inches.
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