Planning an exotic dive vacation to Hawaii? Wouldn't it be great to have an idea of what marine life you may encounter? If you're the kind of diver that wants to know "the lay of the reef" when you go somewhere new then this Marine Invertebrate I.D. Card is what you are looking for. This is a high quality Identification card for the Invertebrates of Hawaii. Printed onto a plastic, these cards are totally waterproof and more robust than paper laminated versions. The card comes with a hole for a lanyard. The card is printed on both sides with over 60 shells, corals, crustaceans, urchins, and sea stars of Hawaii and the central Pacific. Card has fishes and invertebrates on one side, shells on the other. Interesting species shown, even for non-divers. Card measures (W x L) 6" X 9" (15cm x 23cm) and makes a great gift idea.