These 100% natural, chemical-free dishcloths are made of rayon yarn infused with binchotan (Japanese oak) charcoal, the highest grade of charcoal that has natural purification properties. The binchotan works to naturally absorb odour and bacteria, which means that your dishcloths, which are constantly damp, will not become a breeding ground for bacteria, helping them last longer and smell better. 1 double-sided dishcloth per pack.