3" Cotton Buffing Wheel and Mandrel Great For Polishing Jewelry. This is a new cotton buffing wheel and mandrel. It has a leather center. This wheel is used with rouge for buffing and produces a high finish. Has 3 stitched rows. It measures approximately 3" (76.2 mm) in diameter. The mandrel has a 1/4" (6 mm) shank. We work hard to update our descriptions and pictures of our merchandise. As part of a process of ongoing innovation by our suppliers, newer versions of the item shown may be shipped before we are able to complete an update. As a result there may be a slight variation in color and design.