Product material: ABS + stainless steelProduct size: 20.2*2.1*2.1CMUse steps: 1. Press the knife edge against the tinfoil notch with your thumb, and rotate the wine bottle left and right in parallel to cut off the tinfoil cap 2. Insert the air pressure bottle opener needle into the wine bottle vertically from the middle of the cork, make sure that the air pressure needle tube is inserted all the way, so that the needle tip air hole is exposed from the other end of the cork stopper 3. Hold the bottle firmly with one hand, and hold the handle of the air pressure bottle opener with the other hand and twitch the handle up and down to drive air into the bottle until the cork slowly pushes out of the bottle mouth 4. Hold the corkscrew handle firmly with one hand and push the cork out of the needle with the other handReminder: In order to ensure the safety of use and prevent the bottle from bursting due to excessive air pressure in the bottle, this product is equipped with a safety air pressure device. When the air pressure exceeds the safe value, it will not be able to continue to pressurize (do not continue to pressurize in other ways, It may cause the bottle to burst), it is recommended to use other corkscrew tools to continue to open the bottle. If you are concerned about such a small probability event, please purchase with caution.