3-STAGE SHARPENER: Tungsten carbide blades for quick edge sharpening; ceramic blades for precision sharpening; special tungsten carbide blade for sharpening scissors. 3 parts to meet all your sharpening needs. POWERFUL SUCTION BASE: The suction cup strength of this product is twice that of a similar product. This increases your safety during the sharpening process. POWERFUL SUCTION BASE: The suction cup strength of this product is twice that of a similar product. This increases your safety during the sharpening process. EASY TO USE: Just lay it on a flat surface and press the black button. It will attach firmly to the table. You can then sharpen your knife. You don't need to hold it with your hands. Your hands are therefore safe. SMALL SIZE: You can hold it with one hand. Its small size allows you to store it easily. It won't take up much space in your kitchen. Number of shipments: 1 pcs