Replacement silicone seal rings and aluminum filter for moka pot espresso accessory. Durable material: espresso gasket seal made of silicone, filter made of aluminum, odor-free, high quality, soft and flexible. Easy to install: silicone gaskets with aluminum filter are easy to replace and install, prevent leaking, and durable. Convenient: brew head gasket seal rings are ideal replacements for old or broken parts. Universal fit: silicone gaskets with filter compatible with espresso moka pots. Specification: material: silicone, aluminum. Size chart: outer diameter for 1 cup: 5.1cm / 2.01 inch; outer diameter for 2 cups: 5.5cm / 2.17 inch; outer diameter for 3 cups: 6.4cm / 2.52 inch; outer diameter for 6 cups: 7cm / 2.76 inch; outer diameter for 9 cups: 7.9cm / 3.11 inch. Package includes: 1 x silicone seal ring, 1 x espresso filter. Note: please allow slight measurement deviations due to manual measurement and different monitor displays.