Nest, Rock, Balance! A playful toddler toy with smart benefits. These silly birds nest inside each other teaching the fundamentals of size and shape while engaging reasoning skills larger birds do not fit in smaller birds, which strengthen problem solving abilities. 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! P'kolino products meet or exceed US, EU, and Canadian safety standards. Dimensions 3.42 L x 8 H x 5.6 W Materials Wood Age 18 months or older