The listing is for more than 10 species of Janthina Janthinidae or also named the violet sea-snail or purple storm snails .J. janthina is a member of the family Janthinidae, snails that trap air bubbles with a layer of clear chitin to maintain their positions at the surface of the ocean where they are predatious on the hydrozoans .The buyer will have exactly the sea snails on pictures plus some more some of the shells maybe have holes or broken as they are very very sensitive .Once we have a full payment the shells will ship fast  with free tracking number . The shells will post in a special bubbles post envelope with bubbles around so your shell are safe and secure and will let you know with tracking number for you items .Please if you are buying this item be aware that maybe there is a delay of shipping and if you like more sea shells will can make a discount to you ,  normally items will deliver in two weeks time now in this days maybe longer .Thank you for spending time to see our description be all good and safe.