Adjustable Cutting Height The cutting height can be adjusted between 0.8, 1.2, 1.6, & 2.0 mm to allow the user to get the perfect finish. The Classic Trimmer comes with an additional comb set for longer cutting lengths. The combs are ideal for blending removing longer hairs on legs and under the jaw line. The combs are also useful when trimming and tidying pets. The adjustable cutting height allows the flexibility to trim and tidy where required with ease and gives a professional finish.