Kontrast bills itself as a "Card Game for Concept Learning", for 1-4 children between 4-8 years old, and "is particularly suitable for kindergardens, special schools and the home." The goal is to search out the opposites and put them together correctly. Since each card is shaped to fit with its pair, children can tell by themselves whether or not they have mad e a correct selection. Rules are in English, French, Italian, Spanish and Dutch, and are printed on the back of the box as well as in an instruction book. Later released as Opposite Pairs.