Thank you for viewing. I kept it at home after purchasing it, and I hardly used it. It's in beautiful condition with no noticeable stains. Please understand that this is a used item, and those who are sensitive to such things should refrain from purchasing. [Product Details] This is an exercise stool with a built-in balance ball. The structure naturally engages your core just by sitting on it, and it's also suitable for posture support during telework or desk work. It comes with a cover and has a design that easily blends in with the interior. It doesn't look like exercise equipment, so I think it's easy to use in the living room or study.