The HABA educational game Pio Carrier Pigeon playfully introduces children to addition within the number range from 1 to 20. In the role of mail carriers, two to four players help Pio the carrier pigeon to frank letters correctly. By cleverly combining various stamp tiles, participants determine the appropriate postage for the letters. In addition to early arithmetic exercises, this dynamic children's game promotes concentration and quick thinking. With high-quality game materials such as a wooden postmark stamp and an ink pad, calculating becomes a tactile experience. A game takes around 10 minutes.