Discovery Toys MARBLEWORKS Marble Run Deluxe Set The ORIGINAL Marble Run. Since 1982. The most durable, long-lasting, FUN marble run! Design your own super-sized marble raceway! Experiment with an infinite number of configurations! Launch 6 marbles simultaneously with the Start Gate! Chutes and Ramps offer different actions for the marbles! Marbles can pass each other mid-race! Demonstrate the law of gravity and how to alter speed and movement! Develop hand-eye coordination, logical thinking and visual tracking skills! Made from High Impact Polystyrene (HIPS), which is durable, impact resistant, and produces a glossy appealing look. Includes: Marbleworks Grand Prix & Marbleworks Booster Pack. For All Ages, from 5 Years. Dr. Toy&#039;s 100 Best Classic Toys Dr. Toy&#039;s 100 Best Toys