Underwater Silicone Swimming Diving Snorkel
(1)high quality snorkel for snorkeling and swimming training
(2)one-way check valve, the water stop valve will automatically close avoid drowning.
(3)Adjustable plastic holder, for swimmer easy to adjust holder
(4)soft silicone Mouthpiece&hose,harmless to boby
(5)Liquid silicone non-toxic and odorless, safe and environment-friendly