Match, sort, stack! The Gradient Sorter Wooden Learning Toy by Guidecraft gives your toddlers everything they need to explore shapes, colors and construction fun. Featuring a unique nesting design, this set from Educational Toys Planet allows your child to match together circles, squares, ovals and triangles. Guidecraft's Gradient Sorter Wooden Learning Toy includes a smooth wooden tray and 12 colorful shape blocks that can be nested together or stacked up high. The entire set is made from eco-friendly rubberwood and stained with low VOC aniline dyes. Guidecraft's durable toddler activity set also meets the highest safety standards, making it perfect for all young children. Enhance your motor skills and problem solving skills while having tons of fun. Start sorting away!