The Gerber Bear Grylls sharpner has coarse (carbide) and fine (ceramic) replaceable sharpening elements for honing a precise edge. It also has a rubber overmold that provides extra grip while sharpening and a smooth outer cover for easy pocket carrying. Large and small diameter, diamond coated rods allow for sharpening of serrated blades. This sharpener also includes a lanyard hole which provides flexibility in carry options. Also included is a priorities of survival pocket guide which contains Bear Grylls survival essentials.