Build, play and explore physics with LEGO® Gravity Drop. Kids construct a tower comprising their chosen layout of ramps, spinners and funnels. Next they release 6 wooden balls through the pinball-style obstacle course as they race toward their destination buckets. But it doesn't stop there. Kids can endlessly modify their customized contraption using a gravity labyrinth, zip-line starter, grabber claw and more. Everything is included in this hands-on LEGO STEM kit – just add curiosity.