In this innovative and unique puzzle, pieces fit over pegs on the wooden puzzle board to create three interlocking gears that spin when the puzzle is complete. Artwork depicting an engaging ocean scene is on the puzzle board. Vibrant colors and a variety of sea creatures encourage counting and color recognition, and the gears are great for fine-motor development and for teaching cause and effect. Puzzle play helps to promote logical thinking, goal setting, and patience. The Melissa & Doug Wooden Underwater Gear Puzzle is an engaging, hands-on, screen-free activity for kids three and older.