And charging USB in the kits is convenient and safe. Adjustable Hairs Trimming Length - The hair clipper is equipped with 2 guide combs of 4 lengths: 3mm/ 6mm/ 9mm /12mm, the cordless close cutting is equipped with 4 guide combs, whose length are listed as: 1.5mm/ 3.0mm/ 4.5mm/ 6.0mm.
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