LEGO Gravity Drop Brainteaser a mini football with air

a mini football with air pump are included

the book includes back matter with information on the events

observation

soft rubber tail and head

LEGO Gravity Drop Brainteaser a mini football with airBuild gravity defying thrills that will leave you on the edge of your seat! Assemble a high quality foot and a half tall chipboard gravity drop tower full of LEGO contraptions. Unleash 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. (All included right out of the box!) But it