Use this new SMARTMAX® magnetic construction set to create amazing structures. An entry into the SmartMax Ball Run line, Click & Roll includes 30 pieces that enable kids to make all kinds of crazy structures and let the balls roll. Click & Roll contains special parts including straight and curved tubes, panels with holes and funnels. Includes 2 long bars, 8 medium bars, 3 curved tubes, 2 straight tubes, 2 funnels, 9 metal balls, 4 panels with holes and a building guide. SmartMax 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. Our magnets are incredibly strong, able to carry up to 60 times their own weight. SmartMax 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. SmartMax products include 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.