Diablo's Reusable Hand Sanding Block Maximizes Sanding Performance By Enabling Professional Users To Sand Flat And Contour Surfaces With One Tool. This Premium, Angled Foam Tool Includes Two Sides: Cushioned For Controlled Material Removal In Contour Sanding, And Dense For Aggressive Material Removal On Flat Surfaces. Hook Lock Backing Allows Repeated Attachment And Removal Of Diablo Sandnet Sheets. Included With The Reusable Hand Sanding Block Are Five Sandnet Sheets, Ranging From Coarse/Removal To Ultra-Fine Finish. The Reusable Sandnet Nylon Design Is Easy To Clean And Reuse Multiple Times, Simply Shake, Vacuum Or Rinse To Remove Any Build Up.