By switching the switch, you can change the rotation direction of the screw (clockwise/counterclockwise). The mechanism is that the screw is screwed into the cork with clockwise rotation, and the cork is automatically pulled out with counterclockwise rotation. There are some dirt and scratches, but you can still use it o(^▽^)o There is dust in the part where the cork goes in. I think it will come off if you use it a few times. Please see the last two images. It lights up blue with clockwise rotation and red with counterclockwise rotation. Since it has been used, please refrain from purchasing if you are concerned about the details. Charging has been confirmed. *Cash on delivery! Please be careful! Stainless steel Stylish Home Home party