Classic polyvalent tube for apnea, diving and snorkeling | Anatomical profile and very balanced proportions | Semi-flexible and unbreakable PVC tube | Orthodontic design black silicone mouthpiece | Use indistinct side | Hooking system for the height-adjustable mask. Anatomically designed tube adaptable to facial profiles, without angles and without compromising hydrodynamics. Generous diameter and moderate overall length for easy emptying and ventilation. Made of flexible and unbreakable PVC as it has no rigid parts that can fracture. Comfortable black silicone mouthpiece and orthodontic design for comfortable and long-lasting use. Hooking system for the height-adjustable mask. It is a very versatile model: diving, apnea and snorkeling.