These are earring parts by Masako Acrylic Saka. They are almost unused. The black circle was purchased at the shop of Masako Saka herself during the "atelier a" era in Moto-Azabu, an early work with the "a" mark engraved (early atelier a engraving). It is quite rare and cannot be found now. For the mini silver circle, please purchase and use the rubber earring body from Saka (last photo). There are various color variations, so please choose according to your fashion. The black & red circle has a slit and is easy to attach. The black & red ones are somewhat larger and have a slightly more formal and sophisticated feel. With the silver ones, enjoy coordinating with the color of your existing rubber body to match your fashion. These are works by Saka, whose designs, which pursue sophistication and functionality, are supported worldwide. Silver round parts: approx. 2.3cm Circle black & red earrings: 3.8cm Both are beautiful items that have only been used a few times. Please note that the rubber earring body is not included.