Children as young as 3 years old can now grab the controls and speed around this kid-friendly racetrack! Race with your favorite characters Mario and Luigi from the popular video game, Mario Kart. Each Carrera FIRST slot car racing set features a fun themed setting on a track built around their favorite car, TV show, movie, or video game characters. Your child will find staying on the track easy with the electronically regulated speed controllers allowing them to race non-stop in head-to-head action against their friends or siblings. The First sets which are built at a scale of 1:50 are a great introduction into the fast and exciting world of slot car racing. The 9.51-ft. track runs on 4 Type C batteries (not included) and is easy to assemble or disassemble for moving from one room to another or taking it with you. Children will enjoy hours of endless enjoyment racing their cars around the track and competing for a first-place finish! Welcome to the Carrera Family of slot car racing!