1. Material: acrylic lens + ABS 2. Size: about 260x200x190 mm, a single lens is about 108x40 mm 3. Weight: about 315 grams 4. Light source: 2 LED lights 5. Magnification: 1/1.5/2/2.5/3.5 (with 5 lenses, can be used in combination in pairs) 6. Power supply mode: 3 AAA batteries (need to buy by yourself) 7. Scope of application: Observing plant specimens, reading books and newspapers, appreciating antiques, mechanical maintenance, light industry design, etc. 8. Features: the lens can be turned over, the magnification can be changed at any time, the headband can be adjusted (head circumference 48-65 cm), leather lining, comfortable to wear, with light, easy to use at night, durable
