Selected for high quality wood, non-toxic, smooth surface, burr-free, long-lasting hard material, durable, resistant to deformation. It is connected to the baby's compartment because it can exercise colorful architectural blocks, fashion models, excellent materials and baby's cognitive abilities. It is an educational toy that you can remember through your favorite car play. You can easily make a cool train even at an age where you can't play well with blocks. The excellent quality of building blocks, the nature of the materials used for detoxification, does not cause any harm to children.