Nasty little brute-ball, the exact massaging the right points by their extreme strength with little effort !!! That part is great and you can enjoy the beautiful pain when you lean to the ball, for example, against a door and can locate it by its low weight without major dislocations in the desired location. Would I buy it again and I can highly recommend. Also: incl. With 7,95 Euro shipping the best price I could find!
