Fine copper threads clean stuck on food, grease, and grime.  These durable, double layer cloths are gentle enough to use on most cookware,glass,enamel, stoves, and sinks without scratching. High-quality and long-lasting, copper cloths are great for everything from polishing rust off that amazing silverware you found at a yardsale to releasing cooked-on food from your pots, pans and stovetop. I am * a little bit * in love with them. The 100% recyclable copper threads are earth-friendly and clean up easily in the washing machine. Do not use on nonstick surfaces. 5½” x 5¾”.