features:<br />100% .<br />mouthpiece bitten at small dots， easy to bite.<br />mouthpiece for the replacement of the old one.<br />suitable for 99% normal snorkeling snorkel.<br />diving essential supplies. if travel， rental of diving equipment， then we must carry with， to avoid the spread of disease.<br />100% silicone， non-toxic， anti-allergy and anti-aging. suitable for deep sea diving air bottles mouthpiece interface can also be connected with respirator.<br /><br />note: because of the different models of snorkel， diving respirator models， generic mouthpiece is not 100% for all kind tube.<br /><br />package contents:<br />1 x silicone scuba diving tube snorkel mouthpiece