This is an accessory from Dario. Masi Design, a handmade-only shop in Florence, Italy. Dario. Masi is famous for creating only one of each item for both men and women. They have a shop in the center of Florence, and I've been going there for about 10 years when I visit Italy! They specialize in unique designs using 925 silver. (Please note that there is no case.) ☆ Size: 18mm (size 16) ☆ Original Price: ¥48,000 Material: 925 Silver Color: Silver