We have ranked among the top 100 most recognized brands in the world and is known as the place with the innovative hardware people With the continued vision to be the best most helpful hardware stores on the planet Ace Hardware and its retail associates remain dedicated to the core value of quality for its customersFeatures. ProSand MultiAir Cyclonic 5 in Ceramic Hook Loop Sanding Disc 320 Grit Extra Fine Pack of 3. Pack of 3Specifications. Size 5 in. Material Ceramic. Attachment Style Hook and Loop. Grit 320 Grit. Grade Extra Fine. Country of Origin United States. Weight 006 lbs