The Waterproof Fish Identification Fan Deck With Swiveling Snap Hook adds an educational dimension to your diving or snorkeling adventure. Waterproof plastic cards are attached together at one corner for easy fanning of the deck without risk of dropping or losing any of the individual cards. The cards offer clear, full-color, accurate illustrations of over 60 species of fish you’re most likely to encounter while diving the waters of various popular locales. Included swiveling snap hook for attachment to bathing suit, dive belt or BC. There’s no need to wonder, “What’s that fish?” when you’ve got this fish identification card deck.