ASHLAND, Ohio, Sept. 7, 2016 (SEND2PRESS NEWSWIRE) — Hedstrom Fitness now offers an even broader product line using the physics of water! The Kamagon(R) Ball and The Surge(R) are now available in a variety of color and size options. The Kamagon(R) Ball’s patented, Hydro-Inertia(R) Technology uses water as a destabilizing weight.