SSND-MRB20

Inspired by the overwhelming enthusiasm for our classic MRB models, this masterfully engineered sound features an ultra-fluid, 20-segment multi-ribbed shaft that dynamically adapts to your anatomy. With its rounded style tip and undulating architecture, this flexible probe glides in smoothly, providing a rolling magnitude of internal sensation. As each individual rib and valley slips past your internal thresholds, it gently stimulates the tissue to seamlessly expand the way for the segments following behind it.

The 20-Segment Progressive Wave Architecture:

• The Tapered Introduction: Begins with a highly approachable, gently tapered 4.5mm entry tip that guides the sound through the Meatus with zero resistance.

• The Initial Entry Waves (Ribs 1–2): Taper up rapidly in diameter between 7.5mm and 8mm, separated by 7mm relaxation valleys to establish baseline expansion.

• The Forward Canal Transition (Ribs 3–9): Slightly tapers back down from 7.7mm to 7.5mm with accompanying 7.0mm valleys, relieving muscle tension as the sound moves deeper.

• The Mid-Section Core (Ribs 10–13): Holds a perfectly balanced, steady sequence measuring approximately 7.5mm in diameter paired with deep 6mm compression valleys.

• The Posterior Sweet Spot (Ribs 14–19): Marginally tapers back up to 8mm profiles separated by comfortable 7.5mm valleys, intensifying deep-canal engagement.

• The Robust Final Expansion (Rib Check 20): Features a single, longer tapered rib that swells out to a maximum diameter of 8.5mm. This final robust zone provides a gentle stretching action that allows the sphincter muscle to gradually expand before seating itself securely into the final 6mm retaining valley.

Anatomical Depth & Calibration Guide: With a generous 13-inch (330mm) insertable length up to the flared base flange, the MRB20 is fully equipped to safely navigate and map the deep urethral tract:

• 13 Inches: Reaches full deep-canal capacity, letting the robust 8.5mm final rib bridge the internal sphincter while the remaining segments rest comfortably inside the deep cavity.

👑 Bob's Choice Recommendations

• Experience Level: Beginner. Calibrated with a starting 4.5mm tip that swells into a sophisticated sequence of 7.5mm to 8.5mm wave segments, this model is perfect for beginners or intermediate users looking for advanced tactile feedback across an extended length.

• The Prime Durometer Recommendation: For an intricate, 20-segmented column of this length, Bob highly recommends ordering this piece in our #10 (medium) or #18 (firm) material formulations.

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.