The Flex D225-10 MF VE12 Xtreme 225mm Sanding Discs is an extra fine sanding disc to be used with non-orbital sanders. Particularly suited for the Flex Giraffe wall and ceiling sanders, the sanding discs have been specifically designed to work against plasterboard drywaller fillers. The use of these sanding discs will result in an extra-fine surface quality when completed.