They provide a nice little message for your fingers. I'm not sure why, but they seem to relax me. I know you have a lot of pressure points in the hands and fingers, so they must stimulate some relaxation response. I gave a couple away to my curious man. :) He thought they were cool too.
Received as described and pictured. They actually work nicely! I've been a medical massage therapist for 12 years and I'm at desk as an administrative assistant. My fingers thank you.
For what I use these for, I find them to be excellent.
My use: I have a chronically swollen knuckle from overuse on small climbing holds (i.e., crimping). I use it in the morning and briefly throughout the day. For my needs, I find that this product works excellently in short bursts of use, and that rolling it over my knuckle for prolonged time periods has aggravated my skin and created soreness.
Outcome: I experienced a significant increase in mobility coupled with significant decreases in swelling. I measured over several weeks and the diameter of the knuckle decreased by approximately 75% its original size (it was twice the diameter of the healthy hand and was in terrible shape), while I gained almost full range of motion back when closing my finger; I do not have an accurate estimate but it was worth it. For the skeptics: I did not knowingly change any other aspect of my exercise/routine; implementing this ring was the only change in procedure.
I buy these for gifts and explain how to use them for stress relief. Great gift idea and people like them. Great product.