Mud Puppy | Birds - 500pc Glow in the Dark PuzzlePiece together a colorful avian scene with Mudpuppy's Birds Illuminated 500 Piece Glow in the Dark Puzzle. After you complete the puzzle turn out the lights to reveal glowing birds and other secret surprises! 500pc puzzle: 20 x 20", 51 x 51 cm Box: 8 x 8 x 2", 20 x 20 x 5 cm Puzzle greyboard contains 90% recycled paper. Packaging contains 70% recycled paper. Printed with nontoxic inks. All Mudpuppy products adhere to CPSIA, ASTM, and CE Safety