This RYOBI 9-piece set includes three corner sanders of varying sizes - 60, 120, and 220 grits - making it the perfect addition to any DIY enthusiast's tool collection. The set is designed for use with 5-1/2 inch corner cat sandpaper, and is ideal for sanding down wood and other materials. The brand RYOBI is known for its high-quality power tools, and this set is no exception. Whether you're a professional woodworker or just starting out, these corner sanders are sure to come in handy. So why wait? Add this RYOBI 9-piece set to your toolkit today!