1. [Safe System] The snorkel mask features a dry snorkel system that shortens the snorkel tube length and enlarges the diameter for faster exhaust and better breathing. The movable float design can effectively prevent water from flowing into the top, thus reducing the chance of water entering the snorkel, allowing you to enjoy snorkeling, free diving or swimming. 2. [Leak - proof and anti - fog design] The nasal mask is made of liquid silicone, which can fit different face shapes well and maintain a good level of leak - proof performance and comfort. The breathing channel is isolated from the lens to reduce fogging. This snorkel mask can also be used as swimming goggles or diving goggles. 3. [COMFORTABLE AND ] Compared with the full - face type, this snorkel gear doesn't make you feel stuffy in summer, and its weight is relatively light compared to the old full - face snorkel mask. The snorkel set comes with adjustable straps that allow you to adjust for a more comfortable fit. 4. [180 degree panorama] The snorkeling diving mask is made of professional anti - fog flat lens with a wide field of vision, high light transmittance and reduced dizziness. It provides a clear underwater view. The diving snorkeling mask has a camera mount for recording beautiful underwater moments. 5. [Suitable material] The breathing tube equipment is made of liquid silicone, which is safe and environmentally friendly, with no peculiar smell and low risk of allergy. It is easy to clean and suitable for long - term use. 6. Material: liquid silicone 7. Colour: Black 8. Package Contents: 1 * Snorkel Mask Only the above package content is included, other products are not. Note: Light and different displays may cause the color of the item in the picture to be slightly different from the real thing. The measurement error is about +/- 1 - 3cm.