Trim it downTrim your beard to an even length with the included adjustable precision comb. Dial up one of the 12 lock-in length settings to get everything from a 5 o'clock shadow, to a tight trim, to a longer beard style.Edge it upCreate precise edges with the dual-sided blade. You can shave in either direction to get great visibility and see every hair that you're cutting. Line up your style in seconds,Contour followingOneBlade follows the contours of your face, allowing you to effectively and comfortably trim and shave all areas of your face.Create precise edges & sharp lines with the dual-sided bladeOneBlade follows the contours of your face, allowing you to effectively and comfortably shave all areas. Use the dual-sided blade to style your edges and create clean lines by moving the blade in any direction.Wet and dry useOneBlade is water resistant, so it is easy to clean: just rinse it under the tap. You can also shave with or without foam - whichever you prefer.