More Views Hatter's Felt Pouncing Sponge - Hat Care A pouncing sponge is used to brush and shave off loose nap lint and surface soils from felt hats. 2 Sponges per pack. Use one sponge per colour. Product Code: ATH-7023 £10.00 Add to Cart Add to Wishlist Add to Compare Email to a Friend Review Product Tags Product Tags Add Your Tags: Add Tags Use spaces to separate tags. Use single quotes (') for phrases.