50 New Sanding Bands. This a new set of 50 medium grit sanding bands. They are ideal for polishing and cleaning all kinds of wood and metal. These can be used with a Dremel tool. Each measures approximately 1/2" (12.7 mm) in diameter. 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.