【EXPLORATION TOY】 The lock box toy set including 4 unique wooden doors with different lock mechanism with metal handle Product size: 6.3 x 6.3x 4.9 inches, 1.3 lbs. Recommended 18 months+. 【SAFE WOODEN TOY】 Approved CPSIA and ASTM-F963 test. Non-toxic, water paint, no chemical smell. All surface are smooth, polished and all parts metal hinge, safe for kids play it. 【LEARNING TOY】 Playing the educational toy, help kids recognize color, shapes. Develop children's intuition and hands-on ability. Learn to how to open, close, lock and unlock door in the right way, it is a wonder full of happiness.Whether at home or on the way airplane and car, the lock toy will keep children patient and busy for hours. Perfect for Christmas, festivel, birthday gifts. 【MONTESSORI MATERIALS】 Great Montessori style learning for preschool kids, LEADER JOY montessori toy will be variety of play. It is a nice junior level toy, teaching tools in school, homeschool, or early childhood development. Leader Joy internationally renowned teaching aid brand, is a Montessori preschool education group composed of Montessori Ward Limited.Engaged in the research and development, production, sales, after-sales and training of high-end Montessori teaching aids. LEADER JOY montessori toy will be variety of play,Great Montessori style learning for preschool kids,It is a nice junior level toy, teaching tools in school, homeschool, or early childhood development.