Fat Brain Toys Dado Squares - Original 35 three-inch interlocking squares for building an endless number of wonderfully artful structures Transform them into parking garages toy cars, fences for animals, angular hats, space rockets; go artsy with fascinating abstract designs, unique architectural structures; build any way you want! Brilliant creative fun for ages 3+; meets or exceeds safety standards and regulations; made of heavy-duty food grade plastic Inspires complex thought through simple design; strengthens fine motor skills, visual-spatial skills; explore architectural principles: proportion, balance, structure, and more; imagination and reasoning show up in playtime Multiple award winner  Dr. Toy 10 Best Active Products, National Parenting Seal of Approval, Preferred Choice Award  Creative Child Magazine, Exceptional Parent Symbol of Excellence, and more; developed and manufactured in the U.S.A. Inspires complex thought Facilitates imaginative thinking, creativity Strengthens problem solving skills Visual-Spatial skills Generous size, easy to connect Teaches architectural principles Proportion, balance, structure Made of heavy-duty food grad plastic Developed and manufactured in the U.S.A. Frustration-free Packaging