Features: 85 translucent, colorful 3D shapes including 14 square pyramids, 18 triangular prisms, 40 cubes, 6 hexagonal prisms and 7 rectangular prisms Each shape measures about 1 inch by 1 inch Develops math, science, spatial and tactile skills. STEM approved! High-quality magnets are safely secured in each shape For ages 3+ Not only are Magna-Qubix® fun, but they also help develop fine motor skills as kids stack, build, count, match and "click" together their creations. Magna-Qubix® 85-Piece Set is the ultimate magnetic building set for creative kids! Creativity and imagination are fostered when children have no limitations to what they can build!