I just bought my prickly pad which is an acupressure tool...there are many other pillows like this I just found it to be the most affordable...but I just want to throw out a little advice to women like me. I have been suffering from a bad back and weak joints for years. I recently heard about the acupressure treatment and can't believe how simple it is in the comfort of my own home. Please consider researching it or at least trying it out (I mean mine was a 20 dollar gamble) but it was completely effective to my condition. Email me if you have any questions about websites for information etc. I am researching this therapy like crazy right now :)