Fun, funky, squeezy, throwable, squashable! Remarkably addictive, this stress ball is a superb conditioning/warm up tool for the hands and fingers. Perfect for firing across the desk or for relieving stress during a busy day... made to be squeeeezed! The Powerball Stress Ball is designed in the exact style of the real Powerball 250 Hz Pro. Not only is the stress ball good fun but is used for relieving stress and easing pain from RSI, CTS etc... Hard to put down, it's supplied in Red, Green, Orange, Blue or Grey.