While standard cotton ragwheels can be a breeding ground for bacteria and an unavoidable source of cross-contamination, Buffies Disposable Buffing Wheels are made for single-use. Multi-layer, non-woven Polypropylene fabric construction closely resembles the feel and performance of muslin wheels, and they fit everywhere traditional muslin polishing wheels fit-no separate mandrel required. When done, simply dispose and replace with a new, contamination-free Buffie.