The Mona Lisa bit is made with a copper hooded engraved part, copper roller and copper inlays. It has 6 ½” cheeks with an engraved slobber bar. For advanced horses and riders as it has a strong effect. German Silver. The 3 1/2" mouth size has some spots that need to be cleaned, will only take some "elbow grease" and silver polish. With that I have lowered the price on this one bit.