This is a multifaceted educational toy that is great fun for children and adults of all ages. First, there is a unique 22-piece set of rainbow colored non-toxic wooden blocks. The blocks fit together to make a cylinder that is 4.5 inches high x 7.5" deep x 7.5" wide. Your little builder will learn shapes, colors, and sizes as their imagination and coordination unfolds. There are 52 play cards that supplement the blocks. The deck includes 48 Pattern Cards and 4 Guide Cards. Each Pattern card has an image that represents a possible configuration of the blocks in 2-D or 3-D. They are designed for different levels of complexity. The cards are also multilingual and appear in French, German, Italian and Spanish. Fredrick W. Froebel, originator of the kindergarten system, influenced the design of these blocks. It is a wonderful educational product that will have lasting value.