Fisher-Price My First Stacking Shape Sorter is suitable for children aged 12m+. This high-quality wood nesting block set not only features darling graphics and bright colors, but also helps children learn letters, numbers, colors, and shapes while improving fine motor skills and visual stimulation. The 8 wood pieces include shape cutouts of various shapes and corresponding animals, making learning fun and engaging. The largest block is 4.75 inches and the smallest is 2 inches, making it the perfect size for little hands to stack and nest. This beautifully crafted toy is a must-have for any child's development.