[Professional Knife Sharpener] The versatile design of the 3-slot "V" shaped Japanese knife sharpener is capable of sharpening a wide range of tools. The 3 slots are made of tungsten alloy, ceramic and diamond. High quality ABS material provides maximum control and safety when sharpening knives. Quick and easy to make kitchen knives sharper. [Adjustable Japanese Sharpener] Adjustable knob allows sharpening in the range of 14-24; With coarse and fine sharpening, it provides professional angles for different types of knives for quick sharpening to change the cutting edge. There are also scissor sharpening slots. Perfect for everyday sharpening and professional use of knives.[Convenient Operation] The Japanese Knife Sharpener is very easy to use; Simply place the blade in the appropriate slot, adjust the corresponding angle, and gently pull the blade (one-way pull) several times to quickly and effectively sharpen the knife and restore the knife's sharpness and blade shape to kitchen. Keep food at its most delicious moment. [Non-slip ABS base] Professional knife sharpener has been continuously tested and modified; and uses advanced technology combined with professional materials to dramatically improve functionality and durability. Ergonomic handle and non-slip ABS base provide safety and control during use; guaranteeing perfect results every time.