Metron MiniMirrors can be designed to fit into extremely tiny spaces (1/4 Inch diameter and smaller) and be as thin as two human hairs. For the ultimate in scratch resistance, Metron MiniMirrors are available with an exclusive diamond coating. - Available in an assortment of mirror sizes and handles to fit your needs. Medical and dental mirrors come standard with a clear autoclavable adhesive. The mirror edges are beveled and polished for maximum strength.