In the event that your non-slip bath mat gets stained, it can be cleaned in two ways. For light stains or scuffs, use the included sandpaper to gently rub off any marks. We recommend doing this in a well-ventilated area. For more extreme stains, small amounts of vinegar or hydrogen peroxide will do the trick. You can view our full Care and Cleaning guide for your quick-drying stone mat here.