"Make marble runs even more fun and challenging with Hape’s Marble Domino Rally Block Set. Dominoes sure are fun but wait till you play it like this! Get started building your own marble runs with this Quadrilla beginner’s set. Build awesome tracks then carefully place the dominoes in place. Play around the blocks and other pieces and see how you can piece them all together to create an awesome obstacle track. This set includes colorful dominoes, blocks, tracks, slides, traps, marbles, connectors, guide blocks, spiral rails, slide rails, long and short vertical blocks, wooden strips, glass spheres, and everything you need to create a fun track. Place your marbles at a high place and let go! See it knock down the dominoes in place. Great for encouraging hand-eye coordination, planning, and logical thinking. Recommended for ages 4 years and up."