SSND-Solis silicone urethral sound with straight shaft design and retention valley flange
SSND-Solis silicone urethral sound with straight shaft design and retention valley flange

SSND-Solis 6.5-8.5mm 7"

Regular price$32.00
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The Solis 6.5-8.5mm is a straight-shaft sound with no taper, ribs, or valleys along the main body — just a smooth, uniform diameter for even, predictable fullness. Available in five diameters: 6.5mm, 7mm, 7.5mm, 8mm, and 8.5mm.

Details

  • Overall length: 7" (177.8 mm)
  • Insertable length: 6.25" (158.75 mm)
  • Available diameters: 6.5 mm (19.5 Fr), 7.0 mm (21 Fr), 7.5 mm (22.5 Fr), 8.0 mm (24 Fr), 8.5 mm (25.5 Fr)

Size table

Max diameter Retention valley Safety flange
6.5 mm 4.9 mm 10.5 mm
7.0 mm 5.4 mm 11.5 mm
7.5 mm 5.7 mm 12.2 mm
8.0 mm 6.0 mm 13.0 mm
8.5 mm 6.3 mm 13.5 mm

 

How it works

The smooth, rounded tip leads into a straight, non-tapered shaft that holds its chosen diameter for the full length — no unpredictable steps or expansion zones. Each size's own retention valley sits just before the base, letting the surrounding tissue anchor comfortably, with a flared safety stop scaled to match.

Choosing your silicone firmness

Bob recommends #18 (Firm) or #10 (Medium) as the default — this firmness keeps the slim shaft from bowing or buckling during insertion while transmitting clean tactile feedback.

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.

Please note

This is a beginner-friendly piece across all five diameters.
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.

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