Educo Pyramid of Play is a multi functional educational toy. Five wood nesting blocks with fun graphics and new lifestyle colors. Each block helps with recognition of letters, pictures, colors, numbers and sizes. Plus, shapes fit in their corresponding block with a color outline to ease matching. Colored with non toxic paints and assembled with non formaldehyde glue. Nesting and stacking boxes like the Educo Pyramid of Play help develop fine motor skills, which play an important role in preparing kids to be self sufficient. Such skills are critical in children's ability to use spoons to eat, to write legibly with a pencil, to turn pages in a book, to dress, or to brush their teeth. Stacking also helps stimulate reasoning and problem solving skills. This particular set has the added benefit of helping children to match and sort. Educo Pyramid of Play is made of sustainable wood and non toxic paints. Made under stringent quality and safety controls. Largest Block 5.5 x 5.5 x 5.5 Ages 18 Months