●Safe snorkel ：The new dry vent pipe uses an automatic closing valve at the opening to prevent water from entering. When the snorkel enters the water, the opening at the top of the snorkel automatically closes and reopens when the snorkel reaches the water surface. Even if the waves hit overhead, the splash guard prevents water from entering the snorkel. Unlike floating ball valves that are easily stuck by small sand particles or other objects, our new valve will not be stuck.●Food grade silicone material：The mouthpiece and threaded tube of the snorkel and the skirt of the mask are made of food-grade silicone, which is more environmentally friendly and will not have peculiar smell, ensuring that it will not feel uncomfortable to wear for a long time.●Safe tempered glass：The lens is made of tempered glass, with high-definition vision and a large field of view. Compared with the double lens, the field of view is increased by 20%. The explosion-proof and scratch-resistant tempered glass is safer.●Comfortable and waterproof mask: The soft skirt adopts a double-layer waterproof design to avoid leakage. It is equipped with a high-elastic belt, suitable for different face shapes, without any pressure on the face..●A policy that allows you to buy with confidence: Our snorkeling set have undergone strict quality inspections. If your snorkeling set have any quality problems, please contact us. We will refund you for no reason.