Hot tuna mask snorkel fin set the full hot tuna mask snorkel fin set includes everything that any little water baby will need to get started snorkelling in the sea the snorkel includes a splash protector purge valve and angled mouthpiece to prevent and reduce water intake for clear breathing with fins that are flexible with a whale tale shape for minimum resistance and a more powerful thrust with diversion slot pushing technology and a comfortable full foot fit the one piece curve lens mas