Features:● 2" roller lock, 2 layers of Premium grade disc fabrics● 36 grit abrasive alumina● Use on ferrous metals, high-strength materials and wood.● Roller locks can be used for a variety of applications, from grinding to polishing. They consist of a thin abrasive layer glued to the fabric. Specifications:● Disc Diameter: 2"● Grit: 36 Grit● Abrasive Material: Alumina● Abrasive Type: Coated● Backing Material: Woven Fabric 2 Layers● Fastening System: R Type - Roll On/Off● Quick Change Compatibility: For Roloc, TR (III)Package Included:● 20pcs or 50pcs x 2 Inch 36 Grit Sanding DiscNote:1. The actual colors of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.2. Please allow slight manual measurement deviation for the data.