SSND-MRB 7-16
Recommended for open bore options
SSND-MRB 7-16 utilizes 10 expanding ribs separated by deep hold-in-place sizing valleys. Classified in the Advanced experience tier due to its 16.4mm peak maximum diameter, this sound provides continuous, stepped tactile feedback that gradually increases across the entire length of the shaft.
Anatomical Sizing & Mechanics
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Tapered Entry Profile: Begins with an initial 10.2mm rounded tip leading into a 7.2mm valley to allow for smooth, manageable initial insertion.
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Graduated Ribbed Body: Features 10 sequentially expanding ribs that step up from 10.2mm at the entry tip to a peak diameter of 16.4mm near the base, giving users a structured sizing progression.
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Alternating Relief Valleys: Incorporates 10 narrow valleys (ranging from 7.2mm to 11.3mm) between each rib to allow tissue relief and dynamic tactile sensation.
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Flared Safety Base: Terminates at a 16.5mm flared flange to serve as a reliable stop mechanism for positioning and retrieval.
Anatomical Depth Guide
With an overall length of 12.75" (324mm) and an insertable shaft length of 11.75" (298mm), the SSND-MRB 7-16 provides deep canal reach, advancing past the prostatic urethra and bladder neck into the upper canal (10"–14.75" range).
Dimension & Sizing Profile
| Segment / Feature | Outer Diameter (mm) | French Sizing (Fr) |
| 1st Rib (Entry Tip) / Valley | 10.2mm / 7.2mm | 30.6 Fr / 21.6 Fr |
| 2nd Rib / Valley | 10.8mm / 7.2mm | 32.4 Fr / 21.6 Fr |
| 3rd Rib / Valley | 11.1mm / 7.4mm | 33.3 Fr / 22.2 Fr |
| 4th Rib / Valley | 12.2mm / 8.3mm | 36.6 Fr / 24.9 Fr |
| 5th Rib / Valley | 12.2mm / 8.4mm | 36.6 Fr / 25.2 Fr |
| 6th Rib / Valley | 13.0mm / 8.2mm | 39.0 Fr / 24.6 Fr |
| 7th Rib / Valley | 13.2mm / 10.3mm | 39.6 Fr / 30.9 Fr |
| 8th Rib / Valley | 14.2mm / 10.3mm | 42.6 Fr / 30.9 Fr |
| 9th Rib / Valley | 15.3mm / 11.3mm | 45.9 Fr / 33.9 Fr |
| 10th Rib (Peak) / Valley | 16.4mm / 11.0mm | 49.2 Fr / 33.0 Fr |
| Flared Base Flange | 16.5mm | 49.5 Fr |
👑 Bob's Choice Recommendations
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Experience Level: Advanced
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The Prime Durometer Recommendation: #00-50 (Soft) Because the shaft steps up to a large 16.4mm (49.2 Fr) peak profile, the softer density provides extra compressibility to ease insertion pressure and ensure comfortable wear across the entire 11.75" length.
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The Alternative Durometer: Consider #10 (Medium) for users seeking standard column strength and firmer structural feedback during progression.
Color Options: #18 and #30 are available in pure translucent. #00-20, #00-50, and #10 base colors are translucent white and can be mixed with any standard color.
⚠️ Important Safety Disclaimer: Because individual anatomy varies, we cannot guarantee a full fit for all longer or larger diameter pieces. Please use all products with care. By purchasing, you accept full responsibility for safe use. If you experience discomfort, discontinue use immediately.
