Review on Spiky Feet Massagers for Plantar Fasciitis Relief - Porcupine Foot Massage Balls with Varied Colors by Erika Martin

Read some reviews that the balls were different sizes . I wasn't thrilled, but got it anyway. It turned out that they were all the same size. And another thing I also read was that they didn't have the same (how should I put it) tension? It might not be the best word, but they all felt the same when I pressed them. In any case, it can tickle your feet a lot at first. It did mine. But then walk slowly and eventually your feet will adjust. For me in just 10-20 seconds. Then it was very good.