^{The Diamond Cut pattern minimizes the need for multiple cutting strokes by efficiently guiding the hair to feed seamlessly into the cutter. Black Diamond fixed wide blade with Diamond Cut technology for laying down the sharpest of lines, while remaining gentle on the skin.  Made of the highest quality Black Diamond Carbon blade is rust and corrosion impermeable, self-sharpening, stays cooler and sharper longer.  The Wide 41mm fixed blade is ideal for large surfaces, bulk trimming, and can be fully zero gapped for the closest cut and finish.  Easy Installation – To replace the blades simply unscrew the two screws on the back of the trimmer, gently remove the old blade, replace it with the new one, and reinstall the screws into the machine. Make sure blades are aligned properly before turning on the machine.  Improper alignment may cause injury.  "The One" bevel design moving blade cuts closer for the crunchiest, smoothest cutting with no pulling or snagging.  This blade set is compatible with most StyleCraft and GAMMA+ trimmer models.}