Brass Bore Brush Great For Cleaning Tubes, Pipes & Shotgun Barrels. This is a new brass bore brush. Great for cleaning those hard to reach tubes, pipes and shotgun barrels. Each measures approximately 16" x 5/8" (40.6 cm x 16 mm) 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.