Package of 2 Sponges Effectively Cleans Felt Hats Shaves off Loose Nap, Lint and Surface Oils Can be Used with Cleaning Agents Rinse With Water Use Separate Sponges for Light and Dark Hats 01032 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 be used with cleaning agents and can easily be cleaned wby rinsing with water. Don't forget to use one sponge for your li