Beginner Sounds


The urethra is exceptionally sensitive. Always start with a smaller diameter, such as 5.5mm or 6mm options, to allow your body time to adjust comfortably without trauma. If you encounter resistance, stop immediately—pushing through can cause micro-tears or injury. Hygiene is paramount: always wash both your hands and your equipment thoroughly with a mild, antibacterial soap before and after every use. While a very mild tingling sensation can be normal, if you experience sharp pain, bleeding, or difficulty urinating, stop immediately and rest. We have curated a selection of our beginner-friendly pieces below to help you start safely.

A Beginner’s Guide to Urethral Sounding: Materials, Sizing, and Safety

Whether
you are looking into your very first piece or expanding your
knowledge on how to select the right gear, this guide covers
everything you need to know.

Click Here To Learn More
An assortment of silicone urethral sounds in various textures, sizes, and colors arranged on a blue grid background.
    SSND-7mm extra-long urethral sound with polished rounded tip, 7mm diameter, 21 French, available in 8-inch and 18-inch insertable lengths Side-by-side comparison of 8-inch and 18-inch SSND-7mm urethral stretching probes on a grid background, highlighting the flexible silicone design and flanged base.
    Black silicone SSND-7mm urethral sound displaying a polished rounded tip and flanged safety base, shown on a white background.
    SSND-7mm extra-long urethral sound with polished rounded tip, 7mm diameter, 21 French, available in 8-inch and 18-inch insertable lengths
    SSND-7mm extra-long urethral sound with polished rounded tip, 7mm diameter, 21 French, available in 8-inch and 18-inch insertable lengths
    SSND-7mm 8" - 18"
    from $35.00
    SSND-Chastity 8mm contoured black silicone urethral sounds shown in Short 2 inch, Original 2.75 inch, and Long 6.25 inch length variations horizontally on a grid background, highlighting the 5mm rounded tips, 8.8mm maximum ribs, and integrated retention base flanges.
    SSND-Chastity 8-9mm urethral sound showing 5mm rounded tip, graduated ribs, and retention grooves for CB-6000 and CB-3000 devices
    3D interactive model of the SSND-Chastity 8mm short 2-inch silicone urethral sound featuring undulating ribs, a retention groove, and a safety flange base.
    3D interactive model of the SSND-Chastity 8mm original 2.75-inch silicone urethral sound showing undulating ribs, retention grooves, and safety flange base.
    3D interactive model of the SSND-Chastity 8mm long silicone urethral sound featuring undulating ribs, retention grooves, and safety flange base.
    3D interactive model of the SSND-Chastity 8mm extended 10-inch silicone urethral sound featuring undulating ribs, retention grooves, and safety flange base.
    SSND-Chastity 8mm
    from $36.50
    SSND-The Rod 6mm silicone sounding rods shown vertically and horizontally against a white background with a 1"x1" blue grid, featuring colorful flexible silicone shafts with flat safety flange bases.
    SSND-The Rod 6mm 4"-12"
    from $24.00
    A black 13-inch contoured silicone sound with a multi-faceted tip lying horizontally across a blue grid background.
    A colorful line-up of 13-inch contoured silicone sounds arranged vertically side-by-side on a white surface.
    A coiled pile of multi-colored 13-inch contoured silicone sounds resting on a blue grid mat.
    Four 13-inch contoured silicone sounds in blue, white, and pink shades bent in a U-shape on a blue grid mat.
    A black 13-inch contoured silicone sound looped into a loose ribbon shape against a solid white background.
    Two 13-inch contoured silicone sounds in royal blue and dark blue curled into loops on a plain white surface.
    A flesh-tone 13-inch contoured silicone sound looped into a loose ribbon shape against a plain white background.
    Two fluorescent green 13-inch contoured silicone sounds curled into loops on a plain white background.
    A bright pink 13-inch contoured silicone sound looped into a ribbon shape against a solid white background.
    A teal 13-inch contoured silicone sound looped into a ribbon shape against a solid white background.
    SSND-CNTRD13
    from $51.00
    Black spiral-twisted silicone urethral sounds shown in different lengths on a blue grid background.
    A loose heap of thin, colorful spiral-twisted silicone urethral sounds on a plain white surface.
    SSND-SPIRAL 4.5mm
    from $24.50
    SSND-5.5mm smooth silicone urethral sound featuring a 5.5mm diameter (16 French), smooth rounded tip, solid core construction, and 15-inch insertable length on a grid background.
    A collection of silicone sounds in various sizes and colors, including pink, green, orange, and white. They appear flexible and have a smooth surface.
    Pair of SSND-5.5mm silicone urethral sounds in fluorescent green and fluorescent orange featuring 5.5mm diameters (16 French), smooth rounded tips, solid core constructions, and 15-inch insertable lengths on a grid background.
    SSND-5.5mm silicone urethral sounds in fluorescent green and fluorescent orange featuring 5.5mm diameters (16 French), smooth rounded tips, solid core constructions, and 15-inch insertable lengths displayed side-by-side on a grid background.
    SSND-5.5mm
    from $34.00
    Two 4mm straight flexible silicone sounds—one black and one orange—displayed horizontally on a grid background with end caps.
    SSND-4mm ultra-slim smooth straight silicone urethral sound shown horizontally on a grid background, displaying its rounded entry tip, continuous 12-inch micro-diameter shaft, and integrated round safety flange base.
    SSND-4mm
    from $31.50
    SSND-SHRTCATH 4 6 10 short-profile black silicone urethral sound on a blue grid background, showcasing its 6mm tip, 9.5mm and 10mm expansion nodes, 6.5mm retention valley, and thick end safety flange
    SSND-SHRTCATH 4 6 10 short-profile black silicone urethral sound and incontinence plug on a blue grid background, showcasing its 6mm tip, 9.5mm and 10mm expansion nodes, 6.5mm retention valley, and thick end safety flange.
    SSND-SHRTCATH 4 6 10
    from $24.50
    SSND-RIB-6mm soft flexible silicone urethral stretching insert featuring 29 ribbed contours along an 8.5-inch polished shaft, a rounded entry tip, and an integrated safety base flange on a grid background.
    Alternative arrangement of soft, flexible SSND-RIB6 silicone urethral sounds in pink and red displaying 29 ribbed contours along the shaft, 6mm diameter, and flanged safety base.
    Alternative arrangement of soft, flexible SSND-RIB6 silicone urethral sounds in pink and red displaying 29 ribbed contours along the shaft, 6mm diameter, and flanged safety base.
    Two soft, flexible SSND-RIB6 silicone urethral sounds in pink and red curled together on a grey background, displaying 29 ribbed contours, 6mm diameter, and flanged safety base.
    SSND-RIB-6mm
    from $37.00
    SSND-SHRTCATH 3.5 simple design urethral sound with a smooth, gradually tapered shaft, a rounded tip, a distinct retention valley, and a safety flange, shown resting on a subtle grid background.
    SSND-SHRTCATH 3.5
    from $29.00
    SSND-7-13 progressive silicone sound showing 7mm ribbed tip, slender neck, 13mm body, and safety flange in multiple color choices.
    SSND-7-13
    from $31.00
    cntrd3 catheter, 3 inches long, max diameter of 9.5mm, 8mm flange, ball flange, 2 pieces, one red, one flesh colored, on a white background with blue 1"x1" grid
    SSND-CNTRD3 red contoured short silicone sound showing 7mm tapered tip, 9.5mm swells, 8mm retention valley, and ball flange.
    SSND-CNTRD3 short contoured silicone sounds arranged on grid background showing 7mm tip, 9.5mm swells, 8mm retention valley, and ball flange base.
    SSND-CNTRD3
    from $24.00
    SSND-SHRTCATH3 short catheter urethral sound with tapered tip and retention ball, 3-inch length, 6-10mm diameter, 18-30 French for incontinence
    SSND-SHRTCATH3 short catheter urethral sound with tapered tip and retention ball, 3-inch length, 6-10mm diameter, 18-30 French for incontinence
    SSND-SHRTCATH3 6 10
    from $24.75
    SSND-CNTRD2.5 short-profile black silicone urethral sound plug shown horizontally on a grid background, highlighting its 4-sided multi-faceted 8mm tip, alternating 6mm relief valleys, compact shaft, and final retention safety flange base.
    SSND-CNTRD2.5 contoured urethral sound with sensory-enhanced tip and retention flange, 2.5-inch length, 6-8mm diameter, 18-24 French
    SSND-CNTRD2.5 contoured urethral sound with sensory-enhanced tip and retention flange, 2.5-inch length, 6-8mm diameter, 18-24 French
    SSND-CNTRD2.5 contoured urethral sound with sensory-enhanced tip and retention flange, 2.5-inch length, 6-8mm diameter, 18-24 French
    SSND-CNTRD2.5
    from $26.50
    SSND-6.5BT expanded ball tip silicone urethral sounds displayed in black and blue color variants across multiple length options on a grid background, showing the 7.5mm rounded oval tips, slim 6.5mm uniform shafts, and flat safety base flanges
    SSND-6.5BT expanded ball tip silicone urethral sounds displayed in black and blue color variants across multiple length options on a grid background, showing the 7.5mm rounded oval tips, slim 6.5mm uniform shafts, and flat safety base flanges.
    SSND-6.5BT translucent white silicone urethral sound featuring a 7.5mm rounded oval tip, slim 6.5mm uniform shaft, flat safety base flange, and solid construction on a grid background.
    SSND-6.5BT silicone urethral sounds in translucent white and assorted translucent colors featuring 7.5mm rounded oval tips, slim 6.5mm uniform shafts, flat safety base flanges, and various length options curled together on a white background.
    SSND-6.5BT silicone sounds shown as a pair in solid orange and translucent white mixed with standard color selections, featuring expanded ball tips, slim uniform shafts, and flat safety base flanges on a grid background.
    SSND-6.5BT 2"-20"
    from $21.50
    SSND-MRB20 flexible black silicone urethral sound shown horizontally on a grid background from Screenshot 2026-07-02 124255.jpg, displaying its 4.5mm entry tip, 20 distinct graduated rib segments ranging from 7.5mm to 8.5mm, shifting relief valleys, and a 9mm flared safety base flange
    SSND-MRB20 multi-ribbed urethral sound showing 20 graduated segments, 13-inch length, 7.5-8.5mm diameter, 22-25 French
    SSND-MRB20 multi-ribbed urethral sound showing 20 graduated segments, 13-inch length, 7.5-8.5mm diameter, 22-25 French
    SSND-MRB20 multi-ribbed urethral sound showing 20 graduated segments, 13-inch length, 7.5-8.5mm diameter, 22-25 French
    SSND-MRB20
    from $42.50
    SSND-SMTPR-5-10 smooth elongated red silicone urethral sound shown horizontally on a grid background, displaying its gradual 5mm to 10mm taper, 7mm retention valley, and 12.5mm flared safety base.
    A scattered pile of smooth, colorful silicone urethral sounds on a white surface.
    SSND-SMTPR-5-10
    from $41.00
    Silicone SSND-JWW 4-inch extended urethral stretching sound displayed on a grid background
    3D interactive model of the SSND-JWW 4-inch extended silicone urethral stretching sound showing tapered shaft and base flange
    SSND-JWW 4'' Length
    from $29.00
    SSND-CNTRD9 sensory-enhanced blue silicone urethral sound shown horizontally on a grid background, highlighting its 4-sided multi-faceted tip, alternating 7.2mm and 8mm contour nodes, 6mm relief grooves, and final retention safety flange base
    A row of colorful 8mm contoured silicone urethral sounds with multi-faceted tips displayed on a plain white surface.
    A scattered pile of colorful 13-inch contoured silicone sounds with multi-faceted tips on a blue grid background.
    Multiple colorful 13-inch contoured silicone sounds laid out neatly across a blue grid cutting mat.
    A white 13-inch contoured silicone sound with a multi-faceted tip lying diagonally on a plain white surface.
    A colorful array of 13-inch contoured silicone sounds lined up vertically side by side on a plain white background.
    Two black 13-inch contoured silicone sounds with multi-faceted tips laid parallel on a plain white background.
    Two shades of blue 13-inch contoured silicone sounds with multi-faceted tips displayed on a plain white background.
    A tan flesh-tone 13-inch contoured silicone sound with a multi-faceted tip lying diagonally on a white background.
    A fluorescent green 13-inch contoured silicone sound with a multi-faceted tip lying diagonally on a plain white surface.
    SSND-CNTRD9
    from $42.00
    SSND-MRBCUBE multi-dimensional squared rib silicone urethral sound shown horizontally on a grid background from Screenshot 2026-07-02 104843.jpg, highlighting its 4.5mm tapered tip, 15 distinct four-sided cubed segments, 8mm relief valleys, 7mm retention groove, and flat safety base.
    SSND-MRBCUBE urethral sound with unique squared cross-section design, 15 ribbed segments, 12-inch length, 8-9mm diameter
    SSND-MRBCUBE urethral sound with unique squared cross-section design, 15 ribbed segments, 12-inch length, 8-9mm diameter
    SSND-MRBCUBE urethral sound with unique squared cross-section design, 15 ribbed segments, 12-inch length, 8-9mm diameter
    SSND-MRBCUBE urethral sound with unique squared cross-section design, 15 ribbed segments, 12-inch length, 8-9mm diameter
    SSND-MRBCUBE
    from $42.00
    SSND-CNTRD4 short contoured silicone urethral sounds arranged in a cluster in translucent yellow, pink, neon orange, and clear variants from Screenshot 2026-07-02 132526.jpg, showing the 7mm tapered tip, 10.4mm retention ball, and 11.6mm ball flange.
    SSND-CNTRD4
    from $24.00
    SSND-Solis 3.85" Petite silicone urethral sound shown in 5mm and 6mm diameters. Features a specialized retention valley and safety flange for comfortable, secure use
    Dimension specifications chart for the SSND-Solis 3.85-inch Petite silicone urethral sound displaying total length, insertable depth, maximum bulb diameters, retention valley sizes, and safety base flange measurements.
    SSND-Solis 3.85" Petite
    from $16.00