The ER-GB42-K beard and mustache trimmer is easy to use for the style you want. A quick-adjust dial lets you easily adjust between 19 trim length settings between 0.5MM to 20MM.The precision blade 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.