The Koosh ball is a toy ball made of rubber filaments (strands) radiating from a steel-bound core, patented in 1987 by Scott H.

The ball consists of about 2,000 natural rubber filaments,[4] and has been released in a variety of color combinations.

As of 2020, Koosh balls are manufactured by PlayMonster in cooperation with Hasbro.

They were originally created as a set of six characters, then released with variant colors.

In that series, they lived on the planet Koosh, a large Koosh ball planetoid that, in lieu of a proper orbit, bounced against other planets to travel across the universe.