Product review (5 stars): great to increase circulation
My acupuncturist recommended this product after I broke a finger and had completed OT without the best results.  The first time I rolled the ring I couldn't get it off fast enough.  Been able to increase the the rolling to the recommended 2-3 min and can see the change in the circulation in the finger, reduced joint pain, mobility.  Gave the second ring to mother that has arthritis issues.  Hopefully will help her as well.