Whale Premium Ultra Flexible Freediving Swimming Diving Breathing Tube Snorkel COMFORTABLE SILICONE MOUTHPIECE: Hypoallergenic, high-grade silicone mouthpiece with bite tabs for comfort and reduced jaw fatigue.The soft, flexible, premium quality silicone mouthpiece feels so comfortable EFFICIENT DUAL EXHAUST: Easily clear any water out for clear and easy breathing while lap swimming.Allows for clear and easy breathing ADJUSTABLE PLASTIC HOLDER: Quick-release, swiveling snorkel holder for swimmer easy to adjust holder. SPECIAL TUBE DESIGN:Flexible center hose ensures the snorkel falls away from the face when mouthpiece is released 100 DAYS GUARANTEE: If you have any question, please do not hesitate to contact us. We will offer you satisfactory solution and we will reply you within 24 hours.