Science toy of the year finalist, Ka-boom! Made by SmartLAB, right here in Kirkland. This mind-blowing demolition lab lets kids build unlimited warehouse structures and then demolish them with strategically placed blasters -- all while learning about the science of energy, momentum and gravity! Kids build skills like problem-solving, strategy, testing, and experimentation. Mix-and-match pieces to create one-of-a-kind structures. All Demolition Lab kits combine for hours of fun and destruction.