Use the 60 pcs of Long Lasting Wood to create endless combinations for the marbles to roll. Kids love to join these large, solid hardwood blocks with grooves and holes in endless combinations, and then send the colorful glass marbles through tunnels and down chutes. Amaze-N-Marbles provide basic learning, organizational skills and coordination. These large, easy to manipulate units are made of select hard woods with a safe non-toxic finish. Great for adults and children.