Glow-in-the-Dark Fun: Ravensburger Color Star Line puzzles shine in multiple colors, adding excitement after the last piece is placed. Colorful Lighting Effects: Shine a bright light on the puzzle and watch it glow in red, blue, and yellow, with additional fluorescent colors that enhance the experience. XXL Puzzle Pieces: The 100 large, easy-to-handle pieces are perfect for children aged 6 and up. Easy Display: Use Ravensburger Glue Sheets to mount the puzzle and display the glowing masterpiece, helping kids drift into dreamland. High-Quality, Safe Materials: The glow-in-the-dark paint and materials are tested and confirmed to meet safety standards, ensuring a fun and safe puzzling experience. Long-Lasting Glow: After charging under a bright light for a minute, the puzzle gradually glows, with different colors shining for varying lengths of time.