SciMed
Knobbed Ring Pessary With Support, Easy Removal, Sizes 0-8
Knobbed Ring Pessary With Support, Easy Removal, Sizes 0-8
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The SciMed Knobbed Ring Pessary with Support is a soft, medical-grade silicone ring pessary with a small removal knob, made for women with pelvic organ prolapse who find a standard ring hard to take out at home, for example because of arthritis or a weak finger grip. It comes in sizes 0–8 (44–95 mm), is FDA 510(k) cleared, and no prescription is needed. Recommended by OB-GYN clinics to their patients. Made in USA and ships from California.
Pessaries should be fitted and used under the supervision of a qualified healthcare professional. This page is educational information about SciMed products, not medical advice. If you are unsure of your size or type, ask your clinician or start with a fitting pack.
Ships in a plain outer box — sender reads "SciMed" only, no product name on the label.
Ring pessary size chart (outer diameter)
| Size | mm | Inches | Typical Patient |
|---|---|---|---|
| 0 | 44 mm | 1¾″ | Rare, post-op or small anatomy |
| 1 | 51 mm | 2″ | Small |
| 2 | 57 mm | 2¼″ | Smaller-than-average |
| 3 ★ | 64 mm | 2½″ | Common, first-timers, mild prolapse |
| 4 ★ | 70 mm | 2¾″ | Most common, start here if unsure |
| 5 ★ | 76 mm | 3″ | Common, post-childbirth, larger anatomy |
| 6 | 83 mm | 3¼″ | Larger-than-average |
| 7 | 89 mm | 3½″ | Large |
| 8 | 95 mm | 3¾″ | Largest, advanced prolapse |
Not sure which size? See the full Pessary Size Guide.
- ✓ Advanced prolapse where the ring keeps slipping out
- ✓ Patients who struggle to remove a standard ring (limited dexterity, arthritis)
- ✓ Post-hysterectomy patients needing extra retention
- ✓ Recommended by your provider for self-removal difficulty
- ✓ Helps keep your pessary clean between wears
- ✓ Keeps the device clean and dry between wears
- ✓ Sturdy, travel-safe hard case with silicone insert
- ✓ Fits Milex, Bioteque, Cooper Surgical and SciMed rings
Silicone vs PVC RCT (Int Urogynecol J, 2024): Silicone pessary users are significantly more likely to self-manage successfully than PVC users. DOI 10.1007/s00192-024-05933-x.
AUGS-SUNA Consensus (2023): Silicone ring pessary is first-line for early-stage prolapse.
Who This Pessary Is For
- Arthritis, limited finger dexterity, or hand pain
- You've struggled to remove your standard ring pessary at home
- New to pessary use and want easiest self-removal
- Frequent removal and want faster process
Specifications
| Device Type | Vaginal ring pessary with support and removal knob |
|---|---|
| Material | Medical-grade silicone (USP Class VI), latex-free, BPA-free |
| Sizes Available | 0–8 (44–95 mm) |
| FDA | 510(k) cleared, Class II |
| HCPCS | A4562, Pessary, non-rubber, any type (HSA/FSA eligible) |
| Knob Size | ~10 mm soft silicone protrusion |
| Ships From | California |
How to Use
Insertion is identical to the standard Ring With Support. Removal is where the knob helps: hook a finger over the knob, fold and pull. Much cleaner grip than feeling for a smooth ring edge.
FAQ
Does the knob cause irritation during normal wear?
No, soft, contoured silicone designed for the finger-access position.
What size should I order?
Same size as your standard ring pessary. Most common: 3, 4, 5. Email sales@scimedstore.com for sizing help.
How is this different from a Gellhorn?
A Gellhorn is for severe prolapse (Grade 3–4) and is typically provider-managed. The Knobbed Ring is a regular ring pessary with a grip aid.
HSA/FSA eligible?
Yes. HCPCS A4562 (silicone/non-rubber pessary).
Knobbed ring or regular ring: which should I buy?
Both are the same soft silicone ring pessary with support, in the same sizes. The only difference is the small removal knob. If you can take a regular ring out easily, the regular Ring Pessary With Support is all you need. If arthritis, weak fingers or hand pain make removal hard, choose the knobbed ring — the knob gives your finger something to hook. Order the same size you already wear.
How fast does it ship, and what does shipping cost?
Orders ship from our California warehouse. US shipping is a flat $4.99 by USPS on orders under $99, and free USPS shipping on orders of $99 or more.
Can I return it?
Yes, within 30 days if the pessary is unopened and still sealed. For hygiene reasons, opened or used pessaries can never be returned. Your pessary also has a 12-month warranty.
Order or Get Help
Have questions about sizing or fit? Email sales@scimedstore.com or WhatsApp our team at +1-669-265-9353.
Buy 2, save 5% · Buy 3, save 10% on SciMed ring pessaries. Pairs well with the SciMed Pessary Storage Case ($19.99) for discreet storage and travel.
Trusted on eBay, too
We also sell as medical-supplies-usa on eBay — 99.4% positive from 526 buyer reviews in the last 12 months (4.9/5 for communication and shipping speed). See our eBay feedback
Our first-fit promise
New to pessaries? The Fitting Pack finds your size at home — $80 back for the two sealed pouches you return, with a free return label. Already know your size? Sealed packs exchange free within 30 days — we email a prepaid return label.
