1. Lens material: Polycarbonate 2. UV protection, safe to use 3. With two different size nose bridges can be replaced, suitable for different face shapes 4. Soft silicone, strong sealing, effectively prevent water from entering 5. Anti-fog layer design, clearer underwater vision 6. Add optical myopia design for myopic people 7. Size: about 21x6x5.5cm 8. Weight: about 120 grams 9. Note: Due to underwater refraction, it is recommended to choose 50-100 degrees lower than usual for the degree of myopia
