Features: 32 translucent, colorful shapes including squares (2 large, 14 small) and triangles (8 equilateral, 4 right, 4 isosceles) Develops math, science, spatial and tactile skills. STEM approved! Safe, durable tiles made with food-grade ABS (BPA FREE) plastic free of phthalates and latex Ages 3 years and up Magna-Tiles® are the original 3D magnetic building tiles by Valtech since 1997. All Magna-Tiles® building sets are compatible. Magna-Tiles® Clear Colors are translucent and brightly colored, like stained glass!