SmartMax Mega Ball Run STEM Magnetic Discovery Building and Ball Run Set Featuring Safe, Extra-Strong, Oversized Building Pieces for Ages 3+

The SmartMax Mega Ball Run magnetic construction contains an amazing 71 pieces. With endless options, you can make all kinds of crazy machines and let the balls roll. It contains special parts including tubes and X-shaped bars with 4 magnetic ends. Enables young children to explore magnetism safely, with strong, oversized pieces that are specifically designed for handling by young kids. Smartmax products are safe and durable, made from the highest quality materials. The magnets are incredibly strong, able to carry up to 60 times their own weight. Magnetic bars feature unique color codes: "cold"-colored bars (blue, green, purple) attract "warm" colored bars (red, orange, yellow). Warm-colored bars repel other warm-colored bars, cold-colored bars repel other cold-colored bars. Includes complete, colorful guides with both product information and sample designs. All parts can be combined with all existing Smartmax sets, creating an endless range of possibilities.