Metallic foil makes this memory game shine. Learn about these denizens of the deep as you sharpen your memory! With unforgettable artwork by Uta Krogmann. DEVELOPMENTAL AND EDUCATIONAL: Sharpens recognition, concentration and memory skills. Each tile is 2.25 x 2.25 inches. 24 pairs to match. Can be played alone or with up to 4 players. For ages 3 and up.