1 Items included in the box Please remove the protective film from the goggles. 2 Anti-Fog and Wide Field of View Each lens is carefully coated with the optimal amount of Advanced Anti-Fog Coating, it keeps the lens from getting wet and gives you clear and long-lasting vistas Focus on underwater with 180 degrees of peripheral vision swim. Note Do not touch the inner surface of the lens with your hands or any sharp tools, otherwise the lens will be damaged and the anti-fog function will be damaged. 3 Super Soft Silicone Seal The silicone gasket is super soft and comfortable. They create a perfect seal every time thanks to the double seal design, they are around the eyes for even pressure distribution and maximum comfort, leaving no red marks around the eyes and nose for hours after swimming. The 43D ergonomic fit design goggles are based on the gasket type, borrowing from the mechanical principle of the thin shell structure, effectively dispersing the pressure and making it comfortable to wear. In addition, the curved design of the goggle frame fits your eyes perfectly, avoids water leakage, keeps your eyes away from bacteria in the water, and keeps you healthy. Check out the user manual for the pro instructions :) 5 Easy to use, Adjustable Buckle Easily adjust the elastic to ensure it fits most face shapes. The straps are easy to adjust between sizes, and the quick-release buckles on the sides mean you can attach them in seconds without them getting tangled in your hair. So it can fit your eyes perfectly, avoid water leakage, keep your eyes away from bacteria in the water and keep you healthy.Package List One Piece