Description:1.The hook and loop sanding discs are used in wooden furniture manufacturing, home repair and renovation, and repair or industrial use.2.Whether you are a professional or DIY amateur, these sanding discs are compatible with your random orbit sander.Specification :Granularity: 400 GritDiameter: 6"Hole Quantity : 17 HolesMaterial: Aluminum OxideFeature: Hoop and Loop BackingColor: GoldPackage Content :15pcs x Hook and Loop Sanding Discs.