1、Game for Interaction: Children check the card combination pattern first, then choose the corresponding space point on the nail board and use the building blocks to spell out the same shape pattern, which is a perfect toy set for family interaction. 2、Materials: Come with 20 pieces of double-sided cards on cardboard, this wooden puzzle toy set is made of high-quality wooden material, which is hard and enduring to play for a long time, not easy to damage. 3、Recognize the Colors: This toy set comes with 11 color blocks, which are full of bright colors and can be spliced with a variety of patterns. Your children can recognize the basic knowledge of the length, color, and pattern of the building pieces. 4、Develop Spatial Cognition: Perfect for developing children's spatial cognition and training their ability to observe space, this toy set is designed with nail board puzzles, an indispensable member of the toy room, and can grasp children's interest immediately. 5、Help Kids Concentrate: Designed for effectively exercising kidsthinking, combination thinking, and spatial positioning ability, this letter puzzle can stimulate your kid's imagination and creativity. Material: wood + cardboard Size: Wood board: approx. 17.8*17.8*1.5cm Packing size: approx. 19.5*4.6*19.5cm Weight: approx. 410g 1 set Toys