What a Bam! With Demolition Lab for Kids - Mega Smokestack kids can experiment with destruction as much as they want! This SmartLab demolition science toy is a building set, a science kit and a hands-on experimental lab at the same time. This unusual engineering toy allows children to construct the 3 feet tall industrial tower and knock it down, all 4 walls at once, with strategically placed blasters. Demolition Lab for Kids - Mega Smokestack means the destruction to the sky-high tower, but constructive look into science behind demolition processes. Children discover principles of physics, explore momentum, gravity, and more! This giant tower demolition kit features one-touch detonator with super cool Quad-blaster, 22 wall parts, 10 floors/roof tops, 22 footing clips, and detailed instructions. This demolition science toy requires 3 AA batteries (not included).