Wrap a 1/4-sheet of any grit paper around one face of the light-weight, slightly resilient block, hold the sides gently, and sand any surface flat and smooth, without dubbing over edges or rubbing through a finish.
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Other Items from Sanding Tools & Supplies Light Duty Hand Pad Holder - Scotch-Brite 3-Pad Assortment - Soft-Sanders Super-Flex Paper Pk/4 - Sandpaper Storage Chest - Stikit Sanding Block - Scotch-Brite Hand Pad Trial Pack - 6" HD Sander Sitter Carousel - Routing & Sanding Friction Pad - Cork Sanding Block - Flutter Sanding Coarse Sheets - 5" Sander Sitter Carousel -