Bialetti Moka Express, Italian-made aluminum Bialetti "Moka Express" 6-cup size - Brand: Bialetti - Model Name: Moka Express - Country of Manufacture: Italy I'm not sure if it was used once, as it's a distant memory, but it's being sold as almost unused. The inside is clean, with no coffee stains. The bottom also has no burn marks from direct heat. Kalita round paper filters are included. I think these should work with it. Two instruction manuals are included: one from Kalita and one from Bialetti. The box is deteriorated. There are no problems with the Moka Express itself. Please understand that this item has been stored at home before purchasing.