Fädelzoo (Threading Zoo) is a collection of four games all based on the concept of threading pieces onto or off of a string. The theme is animals in a zoo -- the animals have discovered a new favorite past time, which is to connect all of the zoo inhabitants in a line. They first group the animals together by type (all the penguins, then the elephants..), then link the groups together.

Three of the games are interactive and one of these is cooperative. One is to match the threading to a picture (many pictures for this are included), another is a race to complete the threading first but pieces are only added when the right die roll is thrown, and the third is to cooperatively build a single thread as fast as possible. The fourth activity in the box is a solitaire exercise.