Clixtiles is a high quality brand, tiles made from food-grade plastic phthalates and bpa free 100% safe for kids it helps with Stimulating Problem Solving, STEM subjects, Motor Skills, Shape Recognition, Magnetic principles, architecture, and Gravity. kids can create bigger and stronger structures thanks to our strong magnets.material: ABS food-grade plastic. bigger stronger magnets installed for building bigger stronger structures. Star shaped tiles. 6 vibrant colors.