Unlike most sponges that hold dirt, these sponges get rinsed thoroughly leaving it clean and helping you keep a healthy environment by preventing mildew buildup. These sponges wont unravel easily even when scrubbing on tough stains like burnt food. These round scrubbers are tough enough to get dirt and grease off they wont scratch any surface, and are delicate enough for non-stick cookware, pots, and pans. The perfect sponge for an easy dish washing. Its perfect for pots, plates, sink, oven, refrigerator, and in the bathroom and car.