Children can sort by color and shape with these Edxeducation Math Cubes, which help teach STEAM concepts. The cubes click together, allowing children as young as 3 to engage in exciting and educational play. Plastic construction for daily use. Different colors and circle, square, triangle, pentagon and hexagon sides help kids sort in different ways. Easily connect with a soft click, helping youngsters snap them into place. Activity Guide included to provide fun ideas. Recommended for children ages 3 and up.