Diameter: 5 in. Grit: 120 Grit. Grit Type: Fine. Attachment Type: Hook and Loop. Number In Package: 50 pk. Usage: Multisurface. Sandpaper Type: Aluminum Oxide. High-quality white aluminum oxide grain abrasive for increased durability and sharpness. Open-coat grain distribution and resin glue coating reduces grain clogging and improves finish on wood surfaces. Heavyweight paper provides strong backing and reduces edge tear-out for more sanding. Ideal for use on bare wood, paint, varnish, fillers, plastic and other materials. 8-Hole design fits most 5 inch Random Orbit Sanders.