The ER-GB42-K beard and mustache trimmer is easy to use, with 19 adjustable settings ensure that you can always get the precise look and feel you want; a dial conveniently positioned on the handle makes adjusting the hair lengths quick and easy. The precision 45-degree blade cutting system cuts hairs cleanly and easily with ultra-sharp, hypoallergenic blades, helped by a snap-on comb attachment that lifts uncooperative hairs and makes them easy to cut.