Klutz Lego Chain Reactions Science & Building Kit

The Klutz Lego Chain Reactions Science & Building Kit is an excellent science gift for kids who love LEGO building blocks. It includes more than 30 essential LEGO elements, an 80-page instructional book with certified crystal-clear instructions, 6 plastic balls, paper ramps, string, and other components. With this kit, kids will be able to build 10 amazing moving machines.