Replaceable rubber insert in a concave shape that allows you to sand in cramped spaces and odd shapes with ease. A profile clamp holds the rubber shape in place to reach those awkward surfaces that need sanding. Pick the shape, attach the paper and be done sanding before you know it. Whether it is getting paint out of wainscoting grooves or the scrolls of a Louis XIV chair leg, you can achieve professional results with minimal effort. Imported.