I purchased these at Cainz Home three years ago. One box is unopened, so there are 4 pieces. The other box has 2 pieces remaining. A total of 6 pieces will be removed from their packaging, and only the sponges and instruction manual will be sent via Nekopos. Two of the sponges have small, scattered holes on the white side. I believe this is not a problem. Please purchase only if you understand this. I apologize, but please read my profile before purchasing. Thank you.