The parts of this 3 in 1 snorkel mask that touches the face is made of soft silicone, well fit the face, special designed de mask can be used as snorkel mask, swimming goggles and diving mask.
Gravity ball in the breathing tube automatically opens/closes the air inlet, under the action of water pressure and gravity, to ensure air circulation and water will not enter the breathing tube.
Important Notice:
This snorkel mask is suitable for adults and youth whose outer concerns of eyes ≥ 4.7 inch, we don't recommend people whose face width is less than this distance to purchase this product .
Please ensure the sealing of the silicone ring，don't get your hair, swimming cap and other things stuck in the silicone ring when wearing, or it may leaks.