Connor® Beginner Wood PuzzlesPets Puzzle without/Knobs 9" x 12" 5 Pieces These beginner puzzles are the most simple for young learners as they offer one piece per subject. These brightly colored puzzles include visual clues in the background and cover a wide variety of themes and subjects. Individual pieces may be used and manipulated separately (outside the puzzle frame) to extend activities. With knobs. Ages 2-4. By Pacon