Safety and environmental protection: Wooden rainbow building block toys are made of safe and non-toxic painted wooden materials. There is no unpleasant smell the toy retains the unique texture of natural wood you can see the texture of the wood itself. Everyone likes rainbow toys. Stimulate your imagination: wooden rainbow toys are composed of 7 colors and sizes. You just need to use your imagination to transform it into various shapes and you can play with your friends. Wooden rainbow toys can stimulate the brain while playing and can be stacked in castles bridges tunnels etc. Manufacturered by Houseware. Fun of the game: wooden toys stimulate children's imagination creativity visual perception ability curiosity and discovery ability; promote children's physical and mental development. It is also possible to recognize and establish the connection between abstract concepts or images and the reality of specific things through visual input of some operation processes. Suitable for everyone: Rainbow Arch Bridge design. There are many ways to play. Suitable for people of all ages. (The recommended age is over 18 months). This is also the best choice for parents and children to play games. It will shorten the distance with the child and accompany the child to grow together. For children: Stacked blocks have 7 different colors and sizes. The perfect learning toy for your child.