6 months & up. Stack, shake, and soothe with this colorful multi-sensory stacking set! Featuring a sturdy base, brightly colored stacking rings, rattle rings, soft teething rings, and a top ball, this engaging toy encourages hands-on exploration while supporting fine motor development, hand-eye coordination, and sensory learning. The teething rings help soothe sore gums, while the rattle rings add fun sounds to keep little ones engaged. Perfect for developing early motor skills through interactive play.