STUDNETS CREATE A RING WITH SLIGHT DIMENSIONAL FEATURE KNOW AS A TWIST. STUDENTS START WITH ROUND WIRE THAT IS FOLDED IN THE MIDDLE TO CREATE A U SHAPE. THE BEND OF THE U IS HAMMERED FLAT AND THEN THE WIRE IS FORMNED INTO A RING. THE FLATTENED SECTION BECOMES THE DIMENSIONAL FEATURE THAT STICKS UP FROM THE SURFACE OF THE RING.