This Wusthof 2-stage sharpening hone can easily bring those dull knives back to cutting form. The first stage is a course stage for cutting the new edge the next stage uses a fine ceramic to hone the knife to a keen edge. The small size of the sharpener makes it easy to tuck into a tackle box or backpack, great for sharpening folding or filleting knives on camping, fishing, and hiking trips. The keychain keeps it easily accessible. Features: Pocket-size knife sharpener with 2 different slots labeled for easy use Coarse carbide heads set an edge on a dull knife Fine ceramic rods hone an already sharp edge Non-slip rubber inserts on top and bottom add stability; key-chain for carrying