Dough Circuit PianoCreate your dough circuit piano in all sorts of crazy, fun designs using the dough provided! When you touch both the ground pin and the dough strips attached to the piano module, your body transmits the electrical signal and completes the circuit that triggers the unique sound! The piano module sends out safe electrical signals. It is so much fun! Amaze your friends and family by learning to play well known tunes using the musical cards provided! For