This is a genuine Bialetti spare part set for 1-cup Moka pots, designed to keep your coffee maker operating optimally over time. The set includes three replacement rubber gaskets and one stainless steel filter plate. Gaskets are essential for ensuring a tight seal between the top and bottom parts of the Moka pot, preventing leaks and maintaining pressure for perfect brewing. This pack provides you with replacements to give your Moka pot new life. It is compatible with Bialetti aluminium 1-cup Moka pots such as the Moka Express, Dama, Break, and Mini Express models. The outer diameter of the filter plate is 50mm.