A spirograph-type toy. Use the controls on the left side to add, delete, change the size and change the speed of wheels. Use the controls on the bottom to start, pause, reset or create random wheels.
This is so much fun! I'm going to play with it some more, but I just had to say how interesting is to use. =3 Reminds me of my childhood playing with it...only less messy
and the screen is clean and simple as well...