Granat hand-sanding blocks, 69 × 98 × 26 mm, in 36 through 220 grit, sold in sixes. A foam block with abrasive on the faces — coarse enough to shape at 36, fine enough to prepare for finish at 220. Because the block flexes slightly it follows a gentle contour instead of cutting its high points off, which is the usual argument for a block over folded paper.
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