The body part is made of 304 stainless steel, and the bottom is made of 430 magnetic steel. It can heat the heat faster. It works better with the induction cooker. Because it is made of high-quality materials, it makes the coffee more mellow and brings you high-quality coffee. Portable, great for traveling on the road to enjoy delicious coffee, just put it on a small gas camping stove, you can enjoy great coffee no matter where you are! Safety valve regulates boiler pressure, maintains proper level of pressure, and fully releases the aroma and mellowness of the coffee. The most important thing is to ensure safety. Silicone handle is ergonomically designed for comfortable grip and thick anti-slip. High temperature silicone gasket, no odor sealing performance. The metal mesh ensures the quality of the coffee extract. The three-turn thread fits tightly and securely. Material: Food Grade Safety (304) Stainless Steel and (430) Stainless Steel Capacity: 4~9 cups (100ml~450ml) Friendly reminder: manual measurement, if there is an error of 1-2mm, it is a normal difference, please prevail in kind Delivery content: 1 * espresso machine ▲ Free customer service before and after sales. If you have any questions, please feel free to contact us by email. We will do our best to help you. If there are any problems with the product, we can replace it or refund it, we will be happy to help you.