PESSARY RING WITH KNOB WITH SUPPORT
| Size | Mm | Inch |
| #2 | 50 mm | 1.95″ |
| #3 | 65 mm | 2.50″ |
| #4 | 70 mm | 2.55″ |
| #5 | 75 mm | 2.95″ |
| #6 | 85 mm | 3.35″ |
| #7 | 90 mm | 3.55″ |
PESSARY RING WITH KNOB WITHOUT SUPPORT
| Size | Mm | Inch |
| #2 | 50 mm | 1.95″ |
| #3 | 65 mm | 2.50″ |
| #4 | 70 mm | 2.55″ |
| #5 | 75 mm | 2.95″ |
| #6 | 85 mm | 3.35″ |
| #7 | 90 mm | 3.55″ |