Know your "A-B-Seas!" A new take on the classic kindergarten block, Nautical Blocks™ goes beyond traditional ABCs and 123s to teach the special codes of the sea. This set contains the 26 letters of the alphabet with their accompanying maritime signal flag, Morse code, semaphore, the NATO phonetic alphabet words (e.g. Charlie, Tango), and a classic knot illustration. Fans of typography, secret codes and maritime tradition will love this set, with its primary colors and iconic imagery. Perfect for young mates and grown-up captains alike! Handmade in the USA.