The original 3D magnetic building set that engage young minds by fusing math, science, and creativity! Create flat or 3-dimensional sculptures with 42 translucent, colorful shapes including 15 squares and 25 triangles (equilateral, right, and isosceles). Sparks hours of imaginative free play in children. Anything they can dream, they can create! Magna-Tiles help your child develop important math, science, spatial and tactile skills. Safe, durable and built to last for years of play. Recommended for children ages 3 and up.