This is a multi-function children educational toys and it have 100 pieces of digital puzzles. It is made of green environmental protection water-based paint, non-toxic odorless, do not fade easily again,can be let the baby play at ease. This puzzle toys are made of high quality wood, hence it won't hurt the baby's skin. This puzzles have variety of shapes and color. Children can build according to their imagination to set up a building. It is are printed with numbers and mathematical symbols.