| IR0 | IR#0 / 1.75 in. Incontinence Ring pessary | |
| IR1 | IR#1 / 2.00 in. Incontinence Ring pessary | |
| IR2 | IR#2 / 2.25 in. Incontinence Ring pessary | |
| IR3 | IR#3 / 2.50 in. Incontinence Ring pessary | |
| IR4 | IR#4 / 2.75 in. Incontinence Ring pessary | |
| IR5 | IR#5 / 3.00 in. Incontinence Ring pessary | |
| IR6 | IR#6 / 3.25 in. Incontinence Ring pessary | |
| IR7 | IR#7 / 3.50 in. Incontinence Ring pessary | |
| IR8 | IR#8 / 3.75 in. Incontinence Ring pessary | |
| IR9 | IR#9 / 4.00 in. Incontinence Ring pessary | |