The Optimus 15 piece wet/dry multi use clipper and trimmer features 5 changeable heads clipper head, shaver head, precision head, nose and ear trimmer and beard trimmer. It comes with a comb attachment 2/4/6/8mm for beard trimming, 2 comb attachments 315mm and 1830mm for head clipping and 1 thinning comb for head clipping. The blades are self sharping.