Fluorescent Cross Puzzle
Seeing is believing! Not only is this puzzle challenging to reassemble, but try doing it in complete darkness! Aided by the glowing puzzle pieces, can you manipulate the puzzle back into its starting shape? Remove all the pieces and try to rebuild the puzzle.Too easy?Sit the puzzle in daylight or lamplight for an hour.Turn off the lights and give it a try!Not so easy eh? Included: One 7 x 7 x 7 cm / 2.75" fluorescent puzzle.