This Benchmark Abrasives 5" Sanding Disc PSA Rolls Stearate Oxide Coated SD-50RGN120 is a top-quality product suitable for use with an Orbital Sander. The Sanding Grade is medium, and the Color is gold. The Model of this Sanding Disc is Benchmark Abrasives SD-50RGN120 and is made of Aluminum material. It is perfect for grinding applications and is made of aluminum oxide which gives it an abrasive edge. The Country/Region of Manufacture is unknown, but that does not take away its durability and quality. This product is a must-have for anyone that requires sanding discs that are of high quality and efficient.