Give your hat a clean new look with a M&F Felt Hat Cleaning Sponge by brushing off with a dry sponge. The sponge actually shaves off loose nap, lint and surface spots. Sponges can beused with cleaning agents and can easily be cleaned wby rinsing withwater. Don't forgetto use one sponge for your light hats and anotherfor your dark hats! Comes in a package of 2. Rinse with water.