Check it out...
"The Vertiball is the perfect muscle easing device to manage my body to keep me in peak performance for my profession. On a week to week basis, I am managing my body to gain longevity. The Vertiball hits the spots just right; making it easy to take place to place, using minimum space in my squash bag and I can set it up at all locations. This device is fantastic and so practical to use! Between massage & physio treatment, the Vertiball has become my new best friend"... :) - Aaron Frankcomb, Former World #38, Head Squash Coach & Director of the East Coast Squash Academy
For your peace of mind, I’m offering you a 100% Money Back Guarantee. Simply give vertiball a go for 4 weeks and if you don’t notice any improvement in flexibility and/or pain relief, I’ll give you your money back, no questions asked (just make sure you keep the great packaging!)