Nest, Rock, Balance! P'kolino's Nesting Birds toy is a playful toddler toy with smart benefits. These silly wooden birds nest inside each other, teaching the fundamentals of size and shape while engaging reasoning skills. Rock and balance to learn spatial awareness and to fine-tune hand-eye coordination. Strengthen fine motor skills by separating the birds and putting them back together. These functional features combined with the beautiful colors and natural wood creates a truly one-of-a-kind, playfully smart nesting toy! For ages 18 months and older. Made in China. Conforms to all US product safety standards.