Super fine filter, universal bowl for high pressure coffee machine, porous fine filter, makes your coffee delicate. It will not rust and is durable, and the cup body is thick and durable. The combination of 2 styles offers a more practical combination, allowing you to enjoy the coffee moment. Use: 1. Pour hot water into the cup, and do not open the relief valve. 2. Pour coffee (recommended fine grinding) into the cup. Use chopsticks or a beans spoon to smooth it. 3. Slightly press the filter paper, attach it to the upper filter, and screw up the upper part. 4. Spin on the upper part (to tighten so pressure will not leak out). Do not rotate the handle of the pot, as it is easy to spin. 5. Heat with a gas lamp or an alcohol stove. It is easy to make the base hot if using hot water. 6. When coffee starts coming out, switch to a small fire (do not let it rush out quickly). 7. Then slowly boil the coffee. Color: Silver Material: Stainless steel Size: 51mm Contents: - 1 x 2 Cup Filter Basket - 1 x 4 Cup Filter Basket Maintenance: 1. For first use, wash and dry the funnel with white vinegar and water. 2. During use, avoid collision with sharp objects to prevent scratches. 3. After use, wash with a little neutral or alkaline detergent, dry with a soft cloth, and keep dry and clean. 4. Avoid dry burning. Only the above content is included; no other items are provided. Note: Lighting and different displays may cause the color of the item to appear slightly different from the real thing. Measurement allows an error of +/- 1-3cm.