Get your brain in gear with this bending, clicking teaser. 16 folding gears create a 14" shape-shifting chain, with 40 challenge cards, 4 difficulty levels and – thankfully – detailed instructions.
Get your brain in gear with this bending, clicking teaser. 16 folding gears create a 14" shape-shifting chain, with 40 challenge cards, 4 difficulty levels and – thankfully – detailed instructions.