These Sunshine Polishing Cloths are the BOMB!! Specially made with a micro-abrasive they safely clean, remove tarnish,  and brilliantly polish Gold, Silver, Copper, Brass, and other metals leaving a deep, long lasting luster.
 
I keep one on the workbench and another with my own jewelry to clean/ polish as needed. Use over and over until the cloth turns completely black (mine has lasted over year!)