This set includes 4 large squares, 12 small squares, 16 equilateral triangles, 2 equilateral triangles with a hole punch, 10 right triangles, 4 isosceles triangles, and 2 wheeled chassis. It features frosted magnetic tiles, which are unique to this set, and the wheeled chassis pieces let kids build and race their own magnetic cars. Through play, children can explore cause and effect and logic principles while developing hand-eye coordination and fine motor skills. It makes a thoughtful gift for builders ages 3 and up. If you'd like to expand the fun, the MAGNA-TILES Cars sets add more drivers and vehicles. All pieces are fully compatible with other MAGNA-TILES sets. The tiles are built to last, with a lattice design that helps prevent cracking and secure rivets that keep magnets safely in place. They're made from food-grade, non-toxic MABS plastic that is free of BPAs, phthalates, and latex, and the magnets are strong enough to connect but easy for small hands to pull apart. Designed for ages 3 to 99, MAGNA-TILES encourage meaningful, child-led play that is fun, engaging, and developmental, with no instructions or adult help needed.