With this brilliantly colored 30-piece set, young children can build a fantastic marble run. Watch as the marbles spiral and hop down the various pieces of track, all the way to the cup at the bottom. Small bumps inside the track pieces keep the marbles from running wild and falling off the track. Colorful track pieces are made from eco-friendly PlanWood, with solid wooden poles in graduated lengths. Thoughtfully designed by Plan Toys, the Deluxe Marble Run teaches problem-solving and fine motor skills and encourages creative, social play. Appropriate for 3 year olds and up. Sample pole dimensions: 2.6 in x 2.6 in x 8.9 in.