Material: SteelCarbides sharpen very dull edges Pre-set quickly.Shaped ceramic slot Specialy to finish edges and sharpen serrated blades.Diamond rod for sharpening Tapered serrated and standard edges.Compact and lightweight. VeryHole for carrying. LanyardThe pocket pal features a fold out、 tapered round of rod for sharpening SA and standard edges、 pre-set carbide blades for quickly restoring a dull edge、 and specially shaped ceramic stones for a razor sharp finish. The carbide blades and ceramic stones are neurodegeneration and replaceable for extended sharpening.The pocket pal measures just 3-1 / 2 inches long and 1 inch wide、 and it weighs just 1 ounce. an integrated lanyard hole makes for easy carrying. always clean your sharpener with a damp clothed after use and towel dry. Do not rinse with water.Blades: Set the Edge CarbideCarbide blades The provide quick edge setting capability for dull or damaged knives. blades These are designed for use on straight edges only and are reversible and replaceable.Stones: Finish the Edge CeramicStones provide a smooth Ceramic polished edge for already sharp knives and can be used on serrated or standard blades. They're also reversible and replaceable.