Kids love thrilling roller coasters, and now they can design their own! Through trial and error, students learn how the track position affects the disk as it rolls and falls from track to track and into the goal box. Plus, the magnetic tracks stick to any flat magnetic surface (like item 208, the Stand-Up Magnetic Wipe Board). This set includes 5 double-sided challenge cards, 3 disks, a goal box and 10 magnetic tracks.