12 months & up. Instill a sense of wonder into children as they see this toy twirl and spin! Drop the vibrantly colored discs onto the threaded corkscrew pole and watch children's eyes widen as the shapes spin and wobble. For more stable stacking, simply flip the reversible base over. Each disc is dual-colored, solid, and BPA-free. This visually stimulating toy encourages hand-eye coordination and baby engineering skills. It's colorful stacking like you have never seen before! Measures 16" tall.