Koosh ball

The Koosh ball is a toy ball made of rubber filaments (strands) radiating from a steel-bound core, patented in 1987 by Scott H. Stillinger. The company later expanded their product line to include 50 other Koosh-related products, including keyrings, baseball sets, and yo-yos.
The ball consists of about 2,000 natural rubber filaments, and has been released in a variety of color combinations. A variation was the Koosh Kins line of Koosh balls with cartoon faces and hands. Koosh Kins was made into a comic book mini-series by Archie Comics, where they kept their cartoon-like appearance.
Koosh balls are often used with QuickStart tennis exercises to help children develop motor skills.
, Koosh balls are manufactured by Hasbro, and the brand has recently expanded into different product lines starting with Koosh Galaxy. The new line consists of toy blasters that fire foam balls similar to the original Nerf ball, and includes a cross-promotion with "Angry Birds Star Wars".