This Night Edition Empire State Building puzzle uses LED technology to create 5 different coloured lighting effects. The completed puzzle will glow with a warm red, yellow, green, blue or pink light, automatically changing to make this an effective and dramatic addition to any room. The puzzle uses unique hinged plastic pieces, which slot together to build a sturdy and strong building. No glue required. The Empire State Building 3D Puzzle from Ravensburger has 216 high quality plastic pieces and measures 48.5cm tall when complete. Each puzzle piece is printed with a number on the reverse side, so you can either assemble the puzzle by eye, or just by following the numbers. The Ravensburger Empire State Building 3D Puzzle With Lights comes with a printed base board, so it can be displayed on a shelf or table top. Enjoy one of the worlds most famous buildings lit up in your own home. Requires 3 x AAA batteries (not included).