A final batch of our 200-grit diamond flattening stone in gold anodized finish. Same milled aluminum base, same 200-grit diamond matrix, same 12μm flatness as the standard Zen-Wu Diamond Flattening Stone. 8-1/4" × 3" × 1/2" (210 × 76 × 12mm). Lubricate with a light spray of water or glass cleaner.