3 months & up. Closed, it's a colorful cube with mirrored faces...when it's open, images multiply in a kaleidoscopic land of self-discovery. This sensory development activity center is perfect for your little one to explore how reflections work as well as introduce them to different colors and shapes. The soft, bright cubes are made in primary colors, sure to keep your little one's attention. Great for daycares, nursery spaces, and more.