BRAIN DEVELOPMENT - PicassoTiles 3-pack race cars are compatible and work with other PicassoTiles race track sets or other magnetic race car tracks. Watch the race cars glide and zoom through any smooth surface in an indoor or outdoor environment! 3 LED LIGHT-UP CARS INCLUDED - Comes with 3 LED race cars that allow for focus, attention, and the use of imagination to build the race track design using the various shapes and pieces to create the structural design required to keep the cars running in loops. (2 x AA batteries per car required and NOT included). Street and traffic sign set included to mimic the environment and maximize pretend play when playing in groups or individually. LEARNING IS FUN - Encourage creativity for STEM learning, which is the key factor for success in today's ever-changing environment. Fun and entertaining. Educational gift for school-age children that will never go out of style. Magnetic building tiles, clear 3D colored magnetic building blocks, play boards for preschool, pretend play, group activity, classroom collaboration, kindergarten, and more. Easy to construct and easy to put away for storage. LEARNING BY PLAYING - Never too early to start developing creativity and STEM skills from visual learning. Children can acquire a sense of color, geometric shapes including 3D forms, number counting, magnetic polarities, architectural design, structural engineering, and even periodic table elements (available in other sets) at an early age. DREAM BIG & BUILD BIG - No limitations, scalable to build as big as desired by adding more pieces to create the masterpiece. SCIENTIFIC & ARTISTIC - PicassoTiles has done it again. STEAM Science, Technology, Engineering, Art, and Mathematics, all-in-one that allows for learning through intuitive play and brings out the ability in everyone to be artistically creative while being technically, architecturally, and intelligently inclined at the same time. MADE OF SAFE, NON-TOXIC, BPA-FREE, and lead-free materials to ensure quality and standards.