Material: natural crystal / semi-precious stone crystal and semi-precious stone
Category: Ghost / Vision
| size：cm | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 |
|---|---|---|---|---|---|---|---|---|
| Inner diameter | 15.1 | 15.4 | 15.8 | 16.1 | 16.5 | 16.9 | 17.2 | 17.6 |
| perimeter | 47 | 49 | 50 | 51 | 53 | 54 | 55 | 57 |