This is the Sea Fan Identification Fish Guide Cards Scuba & Snorkeling Accessory Features: Convenient clip for attaching to your BCD Bright, Beautiful and Accurate illustrations of over 60 species Durable waterproof pages will last dive after dive Great for use when exploring new waters! Measure 3 x 2" Available for 8 popular dive locations: Florida Cozumel Virgin Islands Cayman Islands Pacific Coast Hawaiian Islands Caribbean The Red Sea An excellent way to educate yourself on the local fish population of your next dive adventure.