This Magic Balancing Bird 6.5" Wingspan is a simple device that demonstrates how gravity works. By perfectly distributing weight on the tips of the wings, and placing its mass near the tip of its beak, the equilibrium of the bird is stabilized. This allows the bird to balance on whatever object it is placed upon, even on your finger tip!! Brilliantly colored in non-toxic shades.per order come with 2 balance birds , one for silver , blue color and one for red ,red blue. Additional Details ------------------------------ Product description: This Magic Balancing Bird 6.5" Wingspan is a simple device that demonstrates how gravity works. By perfectly distributing weight on the tips of the wings, and placing its mass near the tip of its beak, the equilibrium of the bird is stabilized. This allows the bird to balance on whatever object it is placed upon, even on your finger tip!! Brilliantly colored in non-toxic shades.per order come with 2 balance birds , one for silver , blue color and one for red ,red blue.