But I had a few pairs of these in various colors.The point was to have the two balls of which the toy consisted of clicking against each other. They are formed out of two hard plastic marbles, each about two inches in diameter, attached to a ring with a sturdy string. The player puts his or her finger in the ring, allowing the marbles (or balls) to hang below. Through a gentle up-and-down hand motion, the two balls swing apart and together, making the clacking noise that give the toy its name.
I will say, when I was a kid these did not seem to be a saftey hazard but really? They were!