Used to anchor a rubber dam down to the cervical region of an exposed tooth. This device comes in a variety of shapes, sizes, and designs for various situations. It is typically made of spring metal and has bevelled jaws that contact the tooth, and a bow that connects the jaws. Serrated jaws for lower left molars and partially erupted (and some) upper right. For use on Tooth number 1-2-3-17-18-19