VTech Go! Go! Smart Wheels Junior Track Set Enhance and expand your Go! Go! Smart Wheels world with the Go! Go! Smart Wheels Junior Track Set by VTech With 13 interchangeable track pieces, this colorful track set encourages your child's creativity Build many exciting race courses or add tracks to other Go! Go! Smart Wheels playsets You can also connect your playsets to create your own city; connects to other Go! Go! Smart Wheels and Go! Go! Smart Animals playsets (sold separately) It's playtime with miles of learning; intended for ages 1 to 5 years