Mother of Pearl (Premium)
| US | UK | HK | Internal Diameter (Mm) | Circumference (Mm) |
| 5 | J 1/2 | 9 | 15.7 | 49.3 |
| 5.5 | K 1/2 | 10 | 16.1 | 50.6 |
| 6 | L 1/2 | 11 | 16.51 | 49.3 |
| 6.5 | M 1/2 | 13 | 16.92 | 51.9 |
| 7 | N 1/2 | 14 | 17.32 | 54.4 |
| 7.5 | O 1/2 | 15 | 17.73 | 55.7 |
| 8 | P 1/2 | 16 | 18.14 | 57 |
| 8.5 | Q 1/2 | 17 | 18.54 | 58.3 |
| 9 | R 1/2 | 18 | 18.95 | 59.5 |
| 9.5 | S 1/2 | 19 | 19.35 | 60.8 |
| 10 | T 1/2 | 20 | 19.7 | 62.1 |
| 10.5 | U 1/2 | 22 | 20.17 | 63.4 |
| 11 | V 1/2 | 23 | 20.57 | 64.6 |
| 11.5 | W 1/2 | 24 | 20.98 | 65.9 |
| 12 | X 1/2 | 25 | 21.39 | 67.2 |
．Assess an Existing Ring
1. Choose a ring you currently own that fits you well.
2. Gauge the internal diameter of the ring in millimeters.
．Determine Your Finger Size
1. Encircle the base of your finger with a string or a narrow strip of paper.
2. Indicate the point on the string or paper where it intersects.
3. Calculate the length of the string or paper in millimeters.
- Product only available in USA - Free Shipping
- 30 day return window
Feel secure and ready with your Sentri ring, a versatile self-defense accessory that boasts a timeless design and authentic materials. Explore our Mother of Pearl collection, which encompasses exquisite variations like 14K gold, 14K rose gold, 18K white gold, 18K yellow gold, 18K rose gold, and Platinum, enriched with a striking pearl finish.
The Mother of Pearls orb threaded design is meticulously crafted for swift deployment, ensuring the 10mm blade is exposed in just under 2.5 rotations for immediate protection. All our rings are handmade in Los Angeles, California, showcasing the utmost quality materials and craftsmanship.