in 1 Knife Sharpening System: The sharpener has 2 sharpening slots. One is harder tungsten for dull knives, the other is creamy and can be used for sharpening and polishing. This knife sharpener kitchen suitable for most steel knives like chef's knife, santoku knife, smart knife, etc. Comfortable Design: The upgraded design gives you a non-slip grip and increases safety. Just use it on any flat surface to bring your knife from dull to sharp. Practical for home or outdoor use. Easy to Use:Put your knife into the sharpening slot,then sharpen in one direction and repeat 35 times, within three seconds, the blade is sharp as new.Ideal for daily use. Excellent Quality: With durable ABS plastic and a high-quality diamond and ceramic wheel, this sharpener is designed for a complete lifespan. Each item has been fully tested before shipping out. We always offer the excellent quality products for every customer who support us with sincerity.