Our products are made of wood, not cardboard. When our children put the products in their mouths, they will not peel off because there is no cellophane coating on them. Likewise, they will not get wet and deformed because they are not made of cardboard. This product has two layers. There is a subfloor and the puzzle is collected on the subfloor. Since our product is laser cut, there may be a smell of cutting and MDF if it was shilinked immediately when it was first purchased. The cutting smell will disappear within a few hours after wiping with a damp cloth. Our product is produced by our own company from high quality 6mm MDF. Printed on UV machines that do not contain carcinogenic substances. The size of one puzzle is 18x25cm. Suitable for ages +2. It is educationally valuable and fun. It increases thinking-sensory-cognitive abilities-develops hand-eye coordination-fine motor skills-problem solving-shape recognition and memory development.Package Includes Wooden Turkish Farm Animals Educational Puzzle: Wooden Turkish Space Educational Puzzle: Wooden Turkish Explorer Kids Educational-Instructional Puzzle: Wooden Turkish Cute Animals Educational-Instructional Puzzle Available.