This handy little heart shaped scrubber easily removes dust and fabric fibers from your cutting mats allowing the self-healing mats to heal. Simply slide fingers into the opening and rub along the surface to easily remove fibers and dust that keep your mat from healing. The different ridges on the cleaner make this a hard working scrubber. Purple. Silicone. Clean with warm soapy water and let dry. 3" in Diameter.