I was honestly pleasantly surprised by how well this jewelry cleaning kit worked. One of the first things that sold me was that it’s eco-friendly, because I’m always a little nervous using harsh silver or gold cleaners—especially on sentimental pieces. For reference, I tested it on two necklaces (photos attached). • One was a 925 sterling silver chain my parents gave me. • The other was an older chain that belonged to my grandmother, with no metal stamp. The 925 sterling silver necklace shined up immediately and looks absolutely beautiful. I was especially happy to see that it appears safe for stones, which is extremely important to me. The foam, combined with the included brush, made it easy to clean into small crevices and around settings. The older chain didn’t change much—even when we tried another silver cleaner afterward—so I suspect it’s simply a different type of metal rather than an issue with this product. That said, it still worked very well on the stones, which impressed me. Another big plus: no harsh chemical smell, which is a huge improvement over many jewelry cleaners I’ve used in the past. The polishing cloth is generously sized, and the travel box keeps everything neatly stored. Overall, this is a well-thought-out, gentle, and effective kit that I feel comfortable using on my jewelry—especially sterling silver and pieces with stones. I’ll definitely be keeping this on hand.