Feature: 1. Magnification optical lens, having image clear and not blurred. 2. Can adjust the distance between the pupils and the angle of view. 3. Can add headlights to look more carefully, durable and reliable to use. 4. Anti-scratch and anti-fog lens, comfortable to use and practical. 5. Come with headband, screwdriver, cleaning cloth and storage bag. 6. Rechargeable lithium battery can be added when using, light weight, long life, more comfortable to carry, suitable for various dental surgery. Specification: Condition: 100% Brand New Item Type: Dental LoupeMaterial: Nickel alloy, plastic Magnifier Color: Silver Magnification: 3.5 Times Working Distance Dimension: 280-380mm Depth of Field: 80 mm Field of View: 60 mm. Package List: 1 x Loupe 1 x Screwdriver 1 x Cleaning Cloth 1 x Headband 1 x Manual Note: 1. Please use the allocation adapter to avoid damage to spare parts.2. Please use a soft wet cloth to cleaning the equipment, and then wipe dry with a dry cloth.3. Use alcohol to cleaning optical lens and adjust screw parts.4. Do not bathe or use this magnifier under high temperature and pressure.5. Don't look directly at the sun while wearing a magnifier.6. Keep the equipment dry and do not use it in any moist environment.7. Do not attach or wipe optical lens with hard or dirty objects.8. Put the equipment into the packing box after use.