Professional knife sharpener: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 sharp knife 15and 20The tool is quickly fixed in place by powerful magnets15is suitable for fine cutting work, such as sushi, sashimi, Damascus knife, especially high carbon content of hard steel. 20is perfect for sturdy cutting tasks in kitchens and elsewhere. Three kinds of professional grinding pieces: three kinds of materials can be quickly rotated to replace the grinding pieces, 400# diamond, the first stage of fine grinding; 3000# whetstone grinding plate, second stage polishing grinding, 6000# ceramic grinding plate, third stage mirror grinding. Makes the knife look new. Multi-functional three-groove knife sharpeners: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. Note: The ceramic knife can only be gently pulled and ground in this grinding groove, not pressed For giftNon-slip design at the bottom, small and delicate, suitable as a gift for friends, wives, husbands, mothers and so on. Note: Keep dry after use