Use this simple device to demonstrate gravitational force, center of gravity, and force equilibrium. By perfectly distributing the bird's weight on the tips of its wings and placing its mass near the tip of its beak, the bird's equilibrium is stabilized. Balance the bird on your fingertip, the included pyramid, or the top of a pen!
Comes in our choice of assorted colors.
Size, 6 x 6 x 2-1/2"; wt, 0.1 lb.