Dental Surgical Medical Binocular Loupes 3.5X 420mm Optical Glass Loupe with Black Frame

Features:  Head StrapAdjustment Tool  Protective Caps  Setting Target  Flip Grip  Ultra Light Weight (75.0 grams)  One Step Pupillary Adjustment  Convenient 420mm Working Distance Adjustable Angular Viewing  Large Depth of Field  Easy Convergence Settings Safety Soft Touch Frame  Flip-up Design  Large Field of View   Stylish Designs  Multi-Person Use  Handy Protective Carry Case  Inclusive cleaning cloth  Screwdriver  Flexible Headband Specification:  Magnification:               3.5XWorking distance:           420mm Depth of field:               80mm Field of View:                60mmWeight:                     250gFrames:                    Ni-alloy or Titanium Packing List:  Main glass: 1 each  Protect cups:  2 each Handy Protective Carry Case: 1 each Inclusive cleaning cloth: 1 each  Screwdriver: 1 each Flexible Headband: 1 each Adjust Tool: 1 each