Three layer car track designed with clever structure. The layers are closely connected with each other to ensure the smooth sliding process when they're released from the top. The 3 cars will race all the way down. Allow toodlers to fully enjoy the race while learning through playing and promote hand-eye coordination, thinking skills and attention. Develop communication skills and encourages cooperation when taking turns to play their own race cars on the toddler race track. 3 cars includes.