• Rumble, rumble, will it tumble? Crank the lever and test the strength of your building to withstand an earthquake simulation • Includes 15 building pieces, motorized earthquake base and 3-part egg figure that s when it falls • With 11 fun, hands-on challenges (cards included), kids will enjoy building structures again and again • Play on your own, or challenge a friend! • Ignite STEM curiosity through hands-on play; featuring: engineering