SSND-MRB 11.5-14.5
Recommended for open bore options
The SSND-MRB 11.5-14.5 is a 13.75" sound with 12 expanding ribs and variable-length valleys running its full length, peaking at 14.5mm partway in.
Details
- Overall length: 13.75" (349.5 mm)
- Insertable depth: 13.25" (336.5 mm)
- 1st rib (entry): 11.5 mm (34.5 Fr), into a 10.0 mm valley
- 3rd rib (peak): 14.3 mm (42.9 Fr), valley 11.7 mm (35.0 Fr)
- Remaining ribs/valleys: up to 14.5 mm (43.5 Fr)
- Retention valley: 10.0 mm (30.0 Fr)
- Safety base flange: 15.0 mm (45.0 Fr)
How it works
The tapered 11.5mm entry rib eases into a 10mm valley, then the ribs step up to a 14.3mm peak by the third segment. From there, 12 ribs total alternate with relief valleys (10.0–11.7mm) across the full 13.25" length, giving continuous tactile feedback as it moves. The final rib narrows into a 10mm retention valley, letting the muscle seat securely ahead of the flared 15mm base flange.
Choosing your silicone firmness
Bob recommends #10 (Medium) — it gives enough lateral flex through the valley sections to follow the body's path, while keeping enough column strength to guide the full 13.25" length without bowing.
For more compressibility around the 14.3mm peak rib, #00-50 (Soft) is also available.
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 a deep-reaching, intermediate piece — take it slow and don't rush toward full depth.
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.
