This plug has always infuriated me because sometimes it has to be pulled forcefully and quite roughly, resulting in oil spills. And sometimes the ring breaks and it is very difficult to open the oil. But not long ago I discovered why it was really necessary.
Now I will tell you everything in detail. The fact is that the plug must be returned to its place, but before that you need to return it.
After that, press the cap inside the bottle so that it is secured between the slots.
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