Whale&reg; Sk-300 Swimmer's Center Mount Snorkel the Great Tool for Swimming Training 100-percent-cotton-jersey Imported GOOD FOR BEGINNER SWIMMER! Whale center mount snorkel design allows you to get into a rhythm and relaxed state as you focus on breathing and underwater stroke. You may eager to swim a lot of laps under water and this product can help you. SWIMMING LIKE A FISH! The special design of tube can reduce water resistance. It even kept the water out in pretty choppy conditions. If you have a nerve impingement issue in your neck, this one can help you swim comfortably. FEEL FREE OF YOUR HEAD! The adjustable plastic holder make you feel free when you are swimming, and it is easy to adjust the holder and the size. You can fits it over goggles without impeding vision. NO MORE SWIMMING POOL WATER IN MOUTH! Patent design of back exhaust bubbles do not affect the line of sight and no residual water. The One-way Purge Valve allows for clear and easy breathing. HEALTHY AND SUPER COMFORTABLE MOUTH PIECE! Your mouth would like this super flexible silicone.