BRAIN DEVELOPMENT The PicassoTiles 3 pack race track cars are compatible and work with other PicassoTiles race track sets or other magnetic racecar tracks. Watch the race truck cars glide and zip through any smooth surface in an indoor or outdoor setting!.3 LED LIGHT UP CARS INCLUDED Comes with 3 LED race cars that enable to focus, pay attention, and utilize their imaginations 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 battery per car is required and NOT included). Street and traffic sign set is included to mimic the environment and maximize the pretend play fun when play in groups or individually.LEARNING IS FUN Encourage creativity for STEM learning which is the key factor to success in today's everchanging environment. Fun and entertaining. educational present for schoolage that will never go out of style. Magnetic Building Tiles Clear 3D color Magnetic Building Blocks Playboards for preschool, pretend play, group activity, classroom teamwork, 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. can acquire a sense of color, geometrical shapes including 3D forms numbers counts, magnetic polarities, architectural design, structural engineering, to even periodic table elements (available in the 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 master piece.SCIENTIFIC & ARTISTIC PicassoTiles has done it again. STEAM Science, Technology, Engineering, Art, and Math, allinone enabling the to learn by intuitive playing and bring out the of all to be artistically creative while technically, architecturally, and intelligently at the same time. MADE OF , NONTOXIC, BPAFREE and lead materials to ensure and standards