3 years & up. For young minds taking flat objects and constructing 3-D objects is a new and exciting discovery. This 15-piece set features glitter and mirrored tiles that add sparkle to playtime. Your child can connect the tiles and customize the structures they build. Ideal for teaching spatial relationships, math, logic, and problem-solving through creative building. Included: 4 Mirrored Squares, 7 Glitter Squares, and 4 Equilateral Triangles.