SSND-RNDMRIB
Recommended for open bore options
The SSND-RNDMRIB combines 33 alternating ribs with an extended 15" length, for continuous tactile variation across a deep-reach design. It's built for experienced users, with a gently sloped entry tip and a solid retention valley near the base. Available solid or hollow-core for fluid flow or breathability.
Details
- Total length: 15.1" (383.5 mm)
- Insertable depth: 14.75" (375 mm)
- Entry tip: 10.0 mm (30 Fr)
- First rib: 14.0 mm (42 Fr)
- Peak rib body: 14.5–15.7 mm (43.5–47.1 Fr), 33 alternating ribs
- Retention valley: 11.0 mm (33 Fr)
How it works
The 10mm tip guides in smoothly, then 33 alternating ribs (14.5–15.7mm) run the full length, varying in slope and contour for continuous tactile feedback as the piece moves. Near the base, the shaft narrows into an 11mm retention valley, letting the muscle anchor securely just ahead of the flange.
Choosing your silicone firmness
Bob recommends #10 (Medium) — with a 15" length and ribs peaking at 15.7mm, it provides the column rigidity to guide the piece smoothly while still flexing to conform to the body's contours.
For more comfort-focused wear, #00-50 (Soft) is also available — it lets the wide ribs compress slightly on insertion, reducing pressure along the length.
Color options
#18 and #30 are available in pure translucent silicone.
#00-20, #00-50, and #10 use a translucent white base and can be mixed with our standard colors.
Please note
This is an advanced piece — full relaxation and liberal lubrication are needed to accommodate both the length and the 15.7mm maximum diameter.
Use appropriate lubrication and never force insertion. Stop immediately if you experience pain, bleeding, or significant discomfort. Inspect the sound before each use and do not use it if damaged.