The standard, all round Fibre Optic Otoscope constructed of light, high-impact polycarbonate and 3x magnification, scratch resistant acrylic viewing window. Otoscope with Fiber Optic (F.O.) illumination constructed of light, high-impact polycarbonate and 3x magnification scratch-resistant acrylic viewing windowSolid, all-metal construction. A quality instrument for the physicians office with Fiber Optic (F.O.) illumination.