1. High 304 stainless steel, health and safety. 2. layers filter mesh is fine pressed, the coffee is fine and fragrant. 3. Thickened cup body, durable. Use : 1. Pour hot water into the cup, and do not the relief valve. 2. Pour coffee (recommended fine grinding) into the cup. Use the chopsticks or beans spoon to smooth the . 3. Slightly filter the filter paper, affixed to the upper filter and screw up the upper . 4. Spin on the upper (to tighten the pressure will not leak out). Do not rotate the handle of the pot, then it is easy to spin. 5. Heating with a gas lamp or an alcohol stove. It is easy to make the base hot if you hot water. 6. When coffee coming out, turn it into a small fire ('t let it rush out quickly). 7. Then slowly boil the coffee. Maintenance: 1. first use, wash and dry the funnel with white vinegar and water. 2.When using, avoid collision with sharp objects, so as to avoid scratches. 3. After using, wash with a little neutral or alkaline detergent, dry with a soft cloth, keep dry and clean. 4.Avoid dry burning. Colour: silver Material: stainless steel Contents: 1 x Double cup bowl 1 x Four cups bowl Only the above content, other are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.