Casters are important because they have many uses. The material used for the wheels is essential as it affects their performance, longevity and where they can be used. One major concern with casters is that they can leave marks or damage floors. But now we have non-marking casters wheels such as neoprene rubber wheels, soft gray rubber and polyurethane wheels. https://www.muvallcastors.com/blog/understanding-neoprene-rubber-casters-advantages-disadvantages-and-uses/