Full Face Snorkel Mask Set Scuba Diving Swimming Underwater Anti Fog for Kids
【Double-pipe Circulation Breathing】 2021 NEW double-tube external respiration snorkel mask. Inhaling from both sides, exhaust from the exhaust valve, breathing more smoothly. S/M for face <3.93-4.7in(10-12cm),L/XL for face 4.7in(12cm).