4 In 1 KNIFE SHARPENER: The manual knife sharpener has 3 knife sharpening slots and 1 professional scissor sharpener with 6-step Individually adjustable. The grinding angle can be adjusted between 14 and 24 degrees. COMFORTABLE HANDLE: The ergonomic handle, suitable for right- and left-handed users, it allows you to simply insert the blade into each of the slots and gently pull the knife several times through your different knives in seconds to restore original sharpness. NON-SLIP BASE: The knife sharpener is made of excellent ABS material. The knife grinder Non-slip silicone base on the bottom, not easy to slip when sharpening, safe and labor-saving. Knife Sharpener quickly sharpens very dull or damaged blades. EASY TO OPERATE: Manual knife sharpener is very easy to operate; Simply insert the blade into the appropriate slot, adjust the appropriate angle and gently pull the blade (unidirectional pull) a few times to quickly and effectively sharpen the knife and restore the sharpness and shape of the knife's blade. WIDE TO USE: Our knife sharpener professional It can be used not only in kitchen, but also for hunting, camping, outdoor survival as hunting knife sharpener. Precautions: Sharpening knives Do not apply excessive force or pull back and forth during operation.