The Lunatec Odor-Free Green Dish Cloth is a dishcloth that stays odor-free, has less bacteria than sponges and easily rinses free of food debris. It stays odor-free because it dries so fast that bacteria doesn’t have a chance to grow. It’s also easy to maintain because of its single layer weave. Rinsing food from a sponge is painful, but it’s easy with this ingenious dishcloth. And no more non-sense of using the microwave to kill bacteria. You don't even need to machine wash it. You get four in the pack.