The Cold Steel CSKSDSDW is a Double-Sided Knife Sharpener designed with both functionality and convenience in mind. This is a foldable sharpener equipped with two diamond-encrusted surfaces.The first side boasts a 360 grit surface, ideal for setting edges. On the flip side, you\'ll find an extra-fine 600 grit surface for honing your tools to a razor-sharp finish. The unique honeycombed design of the sharpening surface not only speeds up the sharpening process, but also helps keep the grit free from accumulated filings.This sharpener gives you the flexibility to go for dry sharpening or use water for a smoother glide. Additionally, the handle of this sharpener is thoughtfully designed with a slight convex shape to ensure a firm and comfortable grip, boosting your control while sharpening knives or other tools.