Kindly remind: Before sending the loupes,our technician has already adjusted it very clear and focus well. When you received it,please don't move the lens cones. Otherwise,it is very difficulty to reach a good sight as before. Thanks for your understanding. Specifications: Magnification 3.5X Working distance 420mm Depth of field 80mm Field of View 60mm Weight 52g Package Included: • 1 × Main glass • 2 × Protect cups • 1 × Handy Protective Carry Case • 1 × Inclusive cleaning cloth • 1 × Screwdriver • 1 × Flexible Headband • 1 × Adjust Tool.
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