This room connects to other Kung Zhu Track pieces (sold separately) As the hamster enters the room, it reads a bump code so it knows how to react Made in the orange Ninja Warrior color palette Hamster sold separately Manufacturer"s Suggested Age: 3 Years and Up Number of Pieces: 1 Material: Plastic Care and Cleaning: Wipe Clean With a Damp Cloth Dimensions: Length: 12.5 "; Height: 12.25 "; Width: 9.0 " Product Weight: 5.35 Lb.