Features: 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 Specification: Magnification: 3.5X Working distance: 420mm Depth of field: 80mm Field of View: 60mm Weight: 52g Packing List: 1 x Main glass 2 x Protect cups 1 x Inclusive cleaning cloth 1 x Screwdriver 1 x Flexible Headband 1 x Adjust Tool