Although it's new and unused, it has been stored at home for a long time. I bought it online, but it was too big, so I never used it. The color is dark, and it doesn't have much luster, so the grade may not be high. The inner diameter is about 4.3 cm (measured by an amateur). It comes with a box. The shipping method is undecided, but I will contact you once it's decided. I'm considering methods like regular mail, Click Post, and Smart Letter Light. Please read my profile. You can buy it immediately if you have no requests.