20 Elegant and useful germanium stones inlaid??reduce pain?? fatigue & muscle tension. Lowering blood pressure and stimulate blood circulation etc.</br>Made of solid tungsten metal??scratch resistant and very durable.Free of lead and nickel.</br>Size:Length:inches;Width:inches</br>Come with free box.Saving your giftwrap service fee?? and help you store the ring much safer and longer.</br>Life Time Warranty.If you have any question?? please feel free to contact us or just post it in the part of "mer Questions & Answers" below the page?? you will get the answer by us or buyers as soon as possible.</br></br>Product Description</br></br><br><b>About Germanium</b> <br> <br> Germanium is a semiconductor element that has a small band gap that allows it to efficiently respond to infrared light. The two important characteristics of Germanium that brings about healthy function effects are its natural