Sharpen your knives on a picnic, a camping trip or on the patio while you're grilling with this handy pocket-sized sharpener. Outfitted with a keychain for easy carrying and non-slip rubber inserts for stability, the sharpener offers two labeled sharpening slots. The coarse carbide heads create an edge on dull knives, while the fine ceramic rods hone sharp knives for an ideal edge.