If you're headed for Palau or anywhere in Pacific Rim near Micronesia and Guam, this fish I.D. Card is a must for Underwater Identification. This Full-Color Fish Identification Card allows you to know what Local-Wildlife you are looking at when you see it. Card is Waterproof and Easily-Stows in your BCD Pocket. This 6" X 9" (15 x 23 cm) Plastic Slate depicts 60-Plus Fish in Color Drawings, and is Hole-Punched to Secure a Lanyard for Underwater Use. Easy to maintain just Rinse the Fish Card with Fresh Water after a Day in the Sea. Fish ID Cards make a Great Gift Idea.