Wooden Puzzle IS SENT IN A BOX. Each Puzzle Consists of 2-3 Pieces. 3 mm MDF Puzzle 100% Domestic (Our Own Production) Our Products are Laser Cutting - Printing is UV Printing. (It is not Paper Gluing.) Recognizing Tools and Their Functions Hand-Eye Coordination Small Muscle Development Being able to Relate Parts to Whole Strengthening Visual Perception Having Similarity and Difference Skills Suitable for Children 1 Year Old and Above The Average Size of Wooden Pieces is 7 to 10 cm.