ADC Proscope 5312, 2.5V Halogen Dermascope with Nylon Zippered Pouch Bright 2.5v Halogen illumination and 10x optic system ensure true tissue color for accurate identification Removable contact plate is auto-cleavable. Reticle contact plate etched onto the lens in millimeters permits easy measurement of suspicious lesions Large knurled focusing ring. Comfortable soft synthetic rubber eyepiece Instrument head with Bayonet locking mount for secure connection to the battery handle "C" cell powered battery handle with rheostatic on/off switch. Knurled handle for a positive grip. Batteries NOT included Removable contact plate is auto-clavable Large knurled focusing ring Comfortable soft synthetic rubber eyepiece Reticle contactplate etched onto the lens in mm permits easy measurement of suspicious lesions Instrument head with Bayonet locking mount for secure connection to the battery handle.