Montessori Core Storage Set: Specifically designed for children aged 2 and above, this standard Montessori three-level card storage box is an essential accessory for Montessori language, science, and sensory card work. The three-section design perfectly suits the classification, storage, and retrieval of three-level cards Instillation of order sense and organizing skills: Children can place the cards by category and stage into corresponding slots by themselves, learning classification, organizing, and storage, and cultivating a sense of organization and task awareness, laying a good foundation for future learning and life, in line with the Montessori "order sense sensitive period" educational philosophy Safe and natural beechwood material: Made from imported beechwood and crafted using traditional mortise and tenon techniques, the edges are rounded and free of sharp edges. It is an unpainted, environmentally friendly log, safe and non-toxic Compatible with all Montessori series of card work: The size is suitable for Montessori three-level language cards, animal and plant cards, sensory classification cards, math cards, etc. The three-section design can simultaneously store "control cards, picture cards, and text cards", facilitating children's independent implementation of three-level teaching work and enhancing their learning autonomy Universal teaching aid for kindergartens and families: Compliant with international Montessori teaching standards, it is suitable for Montessori language areas and science areas in kindergartens, and also suitable for use in family Montessori corners, guiding children to independently store teaching aids, and cultivating responsibility and independence