1、Professional Tool: Protect your hands, strong magnetic tool holder adsorbs the knife face, silicone veneer will not hurt the knife, rolling grinding disk repeatedly grinding suitable for any hardness of the knife, equipped with three kinds of grinding blades, you will be safe and fast harvest incisive knife. 2、15 and 20 Degree: The tool is quickly fixed in place by powerful magnets. 15° is suitable for fine cutting work, such as sushi, sashimi, Damascus knife, especially high carbon content of hard steel. 20° is perfect for sturdy cutting tasks in kitchens and elsewhere. 3、Three Grinding Pieces: Three kinds of materials can be quickly rotated to replace the grinding pieces, diamond, the first stage of fine grinding; whetstone grinding plate, second stage polishing grinding; ceramic grinding plate, third stage mirror grinding. Makes the knife look new. 4、Three Groove: Scissors groove suitable scissors daily knife sharpening. Tungsten steel rough grinding groove suitable for blunt knife rough groove. Ceramic grooves are suitable for daily grinding of various tools. 5、Practical Gift: Nonslip design at the bottom, small and delicate, suitable as a present for friends, wives, husbands, mothers and so on. Item Type: Rolling Knife Sharpener Kit Material: Tungsten Steel, Ceramic, Diamond Gross Weight: 903g/2.0lb Size: Cylindrical Size: Approx. 90x50mm / 3.5x2.0in Multifunctional Sharpener Size: Approx. 130x55mm / 5.1x2.2in 1 x Cylindrical Knife Sharpener 1 x Multifunctional Sharpener 1 x Instruction Manual