Dental Medical Two-way spiral magnifier Surgical Operation Magnifying Glass Medical Surgical Loupes 2.5/3.5X

1. Magnification: 2.5X, 3.5X 2. Working distance: 420mm 3. Field of view diameter: ≥φ70mm 4. Depth of field: ≥ nominal working distance ± 30mm 5. Interpupillary distance range: 54~68mm 6. Head weight: 100g 8. Packing size: inner 185*125*70mm Outside 200*130*70 9. Packaging: (inner) nylon zipper bag (outer) white kraft E corrugated paper