An angle-adjusting pull-through knife sharpener for knives with different edge angles. According to its name, its sharpening rods adjust automatically to edge angles from about 11 to 23 degrees, covering thin kitchen blades through to thicker hunting and outdoor knives, so you do not need to set an angle yourself. Draw the blade through with light, even pressure a few times. It comes in black and grey. Suitable for plain-edged knives. Read the instructions on the box for the number of passes and cleaning.