This is way more than a puzzle! Cool Circuits is the newest entertaining and educational product from Science Wiz and it is definitely cool, The 40 mind-stretching puzzle cards range from simple to simply impossible as players use their brains to figure out how to connect the puzzle pieces to complete the circuit and light up the game board, Includes:, Light-up puzzle board, 8 3D fluorescent circuit pieces, 40 Puzzle challenges of increasing difficulty, Solution book, Ages 8 and up, SKU: NOG016