The latest addition to the best-selling, award-winning Demolition Lab line brings the house down literally, with Demolition Lab: Wrecking Ball! Build a haunted schoolhouse or mix-and-match pieces to create your own one-of-a-kind structures, then knock em down with the wrecking ball using the science of energy, momentum, and gravity. Young engineers learn how to build, develop strategies, conduct tests, solve problems, and improve their experimentation skills. Combine all the Demolition Lab kits for hours of fun and destruction! This set includes You-build-it wrecking ball, 26 wall panels, 13 floors/rooftops, 16 footing clips, foldable tower and full color booklet.  Age: 8+