2 Grandfather Clock Pulleys For Clock Repair. This is a new set of 2 clock cable pulleys. They are used in clock repair. Each measures approximately 1 11/16" 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.