Assemble 500 high-quality pieces to reveal a colorful underwater scene centered around curious dolphins. Without a designated “top” or “bottom” of this image, you can put together this puzzle with a group, or on your own! Among the most popular piece counts for the avid puzzler, Ravensburgers 500 piece puzzles are designed to challenge and comfort by creating a difficult but more satisfying-than-frustrating experience. For ages 9 and up. WARNING: CHOKING HAZARD – Small Parts. Not for children under 3yrs.