Magna-Tiles were invented to teach children about shapes through play! Each tile has magnets along its edges, the secret is the unique ability to attract even when the tiles are flipped. They always connect! Sized just right and easy to use, Magna-Tects develop fine motor skills as they start by stacking, making flat patterns, and 3-D Shapes, and with time, create complex creations. They are a valuable manipulative for spatial problem-solving tasks, logical thinking and math reasoning. Designed to hold a child's interest and attention, build critical developmental skills and promote imaginative play and creativity. Magna-Tiles Clear Colors: 48 Piece Set is perfect for a family or classroom! Each shape is translucent and brightly colored, like stained glass. Includes: 12 small squares, 3 large squares, 9 equilateral triangles, 10 right triangles, 6 isosceles triangles, 1 wheeled chassis, 2 imagination pieces, 2 equilateral triangles - hole punched, 1 arch, 1 square door frame and 1 magnetic hinged door.