4 Brass & Nylon Bristle Cleaning Brushes. Great For Removing Rust & CorrosionThis is a new set of 4 brass and nylon bristle cleaning brushes. Great for removing rust or corrosion in hard to reach places and cleaning clogged burs. The bristles measure approximately 3/4" (19 mm) long. Each brush measures approximately 4 1/2" (114 mm) long.You receive: 2 brass bristle cleaning brushes 2 nylon bristle cleaning brushes 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.