Whale SK300MK500 Swimming Training Snorkeling Freediving Mask Snorkel Set, Blue 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. YOU WILL LOVE SOFT SILICONE SKIRT AND STRAP! Whale diving mask has the sealing rim that contacts your face comfortably. A bad plastic mask is rigid and would make your face hurt as it seemed to suck to your face. Even the plastic frame would break and start leaking and no more playing in the water. Whale adult silicone scuba goggle is good and soft on your face and does not suck into your face as much and does not make your face hurt. NO MORE LEAKING! Are you still using a leaking diving mask? It is time to change for Whale swimming gear. The silicone skirt is soft and it seals well. If it leaks on the side, you may need to adjust it to be right because it does not quite sit right on your face. FEEL FREE OF YOUR HEAD! Whale snorkel have adjustable plastic holder that make you feel free when you are swimming, and it is easy to adjust the holder and the size. You can fits it over mask without impeding vision. HEALTHY AND SUPER COMFORTABLE MOUTH PIECE! Your mouth would like this super flexible silicone. And the material of tube is PU, it will not do harm to your health but PVC tube do.