SSND-SMTPR-14
Recommended for open bore options
SSND-SMTPR-14 is an elongated, tapered silicone stretching sound designed for smooth, progressive tissue expansion. Measuring 5.25" in total length with 4.5" of insertable depth, this model features a continuous taper that eases insertion across every stage. The body begins with a gentle 7mm (21 Fr) rounded entry tip, expanding steadily to 12mm (36 Fr) over the first 1.5" run. From there, the remaining 3.75" gently graduates from 12mm up to the 14mm (42 Fr) maximum mid-shaft diameter. Behind the peak swell, the shaft relaxes into an 8mm (24 Fr) retention valley directly in front of a 17mm (51 Fr) safety flange. Available in solid-core or open-core configurations, the hollow option allows for natural fluid passage during extended wear.
Anatomical Sizing & Mechanics
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Gentle Tapered Tip: Starts at 7mm (21 Fr) to ensure smooth, low-friction entry past the meatus.
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Dual-Stage Tapered Expansion: Expands from 7mm to 12mm over the first 1.5", then slowly graduates to a 14mm (42 Fr) maximum diameter across the remaining insertable shaft.
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Secure Retention Valley: Drops down to an 8mm (24 Fr) retention neck to help lock the sound in place comfortably during wear.
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Flared Safety Flange: Features a 17mm (51 Fr) base flange to provide positive stopping control and prevent over-insertion.
Anatomical Depth Guide
Providing 4.5" (114mm) of insertable depth, SSND-SMTPR-14 reaches into the pendulous urethra toward the bulbar curve. Its smooth, continuous graduation makes it an excellent choice for users stepping up to a larger diameter without sudden jumps in size.
Dimension & Sizing Profile
| Segment / Feature | Outer Diameter (mm) | French Sizing (Fr) |
| Tapered Entry Tip | 7.0mm | 21.0 Fr |
| Initial Taper (1.5" Mark) | 12.0mm | 36.0 Fr |
| Maximum Mid-Shaft Swell | 14.0mm | 42.0 Fr |
| Retention Valley | 8.0mm | 24.0 Fr |
| Insertable Depth | 4.5" (114mm) | Mid-Length Plug Profile |
| Safety Base Flange | 17.0mm | Flared Safety Flange |
👑 Bob's Choice Recommendations
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Experience Level: Intermediate
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The Prime Durometer Recommendation: #00-50 (Soft) is the primary recommendation for this model. Given the continuous 14mm taper over a 4.5" insertable length, #00-50 provides ideal pliability and cushioned flexibility for users progressing to larger sizes.
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The Alternative Durometer: Consider #10 (Medium) for users seeking extra column stability during insertion, or #00-20 (Very Soft) for maximum tissue compliance during extended wear.
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.