Klutz LEGO Gravity Drop age range 2-13+yr you'll enjoy the added soap-based

you'll enjoy the added soap-based science experiments you can do right in your own kitchen

The spinner is tangle-free

illustrated instructions

With quality construction and great attention to imaginative details

rebuild it into a cool biplane that can fly over a lion

Klutz LEGO Gravity Drop age range 2-13+yr you'll enjoy the added soap-basedFuture engineers design and build a chain reactions machine using LEGO technic bricks! They'll play, learn, and wow as they construct 20 different contraptions on an 18" gravity drop tower. Curious kids release a pack of 6 wood balls from the starting gate and watch them race through a maze of twists and turns, sliding down ramps, flipping spinners, and whirling down a funnel, before they finally plonk into their destined buckets. Physics is fun with