This system of blocks, tracks, and pieces allows the creative energy of a marble to travel and make your child's own path. The wooden tracks and rainbow colored blocks each have different functions, the starting point for endless ways to create a marble drop. You can go right or left, swirl in a funnel or poor out of a teeter totter. The path is determined by the builder. There are simple two or three-level switchers or complex multi-level, multi-direction layouts possible once the builder understands the function of each piece and are able to create it. The basic set is perfect for the child who has just grown beyond blocks and still likes adding and creating his or her own designs.