Domlust Onyx Depth — 9 Inch Black Silicone Dildo with Suction Cup | A-Spot, G-Spot & U-Spot

Onyx Depth  Built for Depth, Designed for Precision

Some toys are made to look impressive. The Onyx Depth is made to perform. A 9-inch dildo engineered around a single obsession: reaching the zones that most toys miss. The A-spot. The G-spot. The U-spot. All three, simultaneously, through a precision-curved shaft that puts pressure exactly where it counts.

This is Domlust's Heavy Fetish tier — not a beginner toy, not a novelty. A serious instrument for serious pleasure.

Platinum Silicone The Only Material That Earns the Name

At Domlust, material is justice. The Onyx Depth is cast from platinum-cured, food-grade silicone — the same standard used in medical and culinary applications. What that means in practice:

• Non-porous: Bacteria cannot penetrate the surface. No hidden contamination between uses.
• Non-oily, non-yellowing: The deep black colorway stays true. No degradation, no tackiness over time.
• Oxidation-resistant: Unlike TPE or rubber, platinum silicone doesn’t break down with heat, cleaning agents, or time.
• Sterilizable: Boiling water, 10% bleach solution, or dishwasher (top rack, no soap). Full sterilization, not just surface cleaning.

If a toy isn’t platinum silicone, it isn’t Domlust. Browse our full silicone dildo to see the standard applied across every product.

Triple-Zone Curve — A-Spot, G-Spot, U-Spot Architecture

The shaft geometry of the Onyx Depth is not decorative. The upward curve is calibrated to direct the rounded glans toward the anterior fornix (A-spot) at depth, while the mid-shaft ridge engages the G-spot on withdrawal. The broad base pressure activates the U-spot (urethral sponge) at the entrance. This is triple-zone stimulation through structural design, not vibration dependency.

• Glans: Broad, smooth, rounded — comfortable entry, maximum internal pressure
• Shaft: Subtle veining, realistic skin texture, firm but yielding
• Curve angle: Optimized for A-spot reach at full 7.48” insertable depth
• Base: Oversized anatomical form — suction cup + cushioned stop

Suction Cup Base — Hands-Free, Surface-Agnostic

The oversized base serves two functions: anatomical realism and mechanical grip. The suction cup locks onto any smooth, non-porous surface — shower tile, bathroom floor, bedroom mirror, glass desk — and holds under full bodyweight pressure. Once mounted, the Onyx Depth stays planted through vigorous hands-free riding, leaving both hands free for additional stimulation or restraint play.

Compatible surfaces: ceramic tile, glass, acrylic, polished stone, laminate. Not compatible with textured, porous, or fabric surfaces.

Full Specifications

• Product Name: Domlust Onyx Depth
• Material: Platinum-cured food-grade silicone — 100% body-safe
• Color: Deep black (flesh-toned base, non-fading)
• Insertable Length: 7.48 in (19 cm)
• Total Length: 9 in (approx.)
• Stimulation Zones: A-spot, G-spot, U-spot (triple-zone curve)
• Base: Reinforced suction cup — hands-free compatible
• Waterproof: 100% — shower, bath, full submersion safe
• Cleaning: Soap + water / boiling water / bleach solution

Frequently Asked Questions

Q:What lubricant should I use with a platinum silicone dildo?

Water-based lubricant only. Silicone-based lubricants bond with the silicone surface and cause micro-degradation over time — the toy becomes tacky and the surface integrity breaks down. Oil-based lubricants are also incompatible with silicone. Water-based is the only safe choice.

Q:Is this a beginner toy?

No. At 7.48” insertable and with a firm, full-girth shaft, the Onyx Depth is designed for intermediate to advanced users. Beginners should start with a smaller diameter and shorter insertable length before working up to this size.

Q:How do I clean and store it?

Routine: warm water + antibacterial soap, rinse thoroughly, air dry. Deep clean: boil for 3–5 minutes or soak in 10% bleach solution for 10 minutes. Store separately from TPE or rubber toys — material contact can cause silicone surface degradation. A cotton pouch or dedicated storage box is ideal.