It’s never too early to learn that round pegs don’t fit in square holes and visa versa. This very early building set is actually a game that challenges children with various building tasks. There are 20 puzzle cards that range from 1 to 3 based on difficulty. The front of the card shows you the finished product which children try to reproduce. On the back is the solution. Using the 18 different colorful solid wood, pieces that feature squares with holes, cylinders with heads and big noses, spheres, pegs and more, there are multiple options for your child to play the game or just build whatever strikes their fancy. Parents told us that this set kept their children interested for hours on end. Fine motor skills and concentration are the beneficial lessons going on behind the scenes here. Many parents suggested that this is a good transition for kids who want to move past standard building blocks but aren’t ready for Legos yet.