Why choose KAAYEE Wooden Jigsaw Puzzles?This is not just a puzzle, it is a wooden puzzle. It will be a great gift for both a child and an adult. An exciting game is suitable for school children and adults.What is the distinctive feature of these puzzles??All parts are cut from Formaldehyde-free birch basswood, 3 mm thick. Special material, sturdy and durable, can keep for nearly ten years.?As soon as the box opens, you will feel the woody aroma. Each puzzle pieces is special and unique, and it comes with an exquisite wooden case, the pieces inside are wrapped in burlap, which is convenient for storing and organizing during the puzzle, and it is not easy to lose.?To create all these graceful figures, we used a high-precision laser and fine printing techniques, which makes sure each puzzle piece not only interlock precisely but also exquisite and integrated. There is no burr at the cutting part of each wood chip, and it will not scratch your fingers or puncture burrs