1. The left and right eyes can be adjusted independently, with different visual acuity 2. High-strength integrated nose pads, comfortable to wear for a long time 3. Gray polarizer for daily use, yellow polarizer for night use 4. Instrument magnification: 3 times 5. Lens diameter: 30mm 6. Field of view: 180 degrees 7. Material: high-density ABS environmentally friendly plastic, acrylic lens 8. Dimensions: 180 x 145mm