BDSM Steel Collar 20mm Flat Slider
BDSM Steel Collar 20mm Flat Slider
BDSM Steel Collar 20 mm Flat Slider — Maximum Flexibility with Detachable O-ring
Make the ultimate statement with the BDSM Steel Collar 20 mm Flat Slider. A solid stainless steel collar with an impressive 20 mm flat profile, adjustable slider, and detachable O-ring — designed for those who want maximum flexibility without compromising dominance. Heavy, versatile, and undeniably authentic.
Crafted from premium stainless steel with a unique 20 mm flat profile — the widest and most pronounced in the Chambers of Love series. The intense contact surface against the neck constantly reminds the wearer of their role. Choose between two powerful finishes: Mirror for a dazzling, polished surface that catches the light in any room, or Satin for a dark, sophisticated matte finish that speaks without words. The collar closes with a smooth slider that glides easily to open and close — no tools required. The detachable O-ring makes the collar versatile: wear it discreetly without the O-ring for everyday use, or attach the O-ring as a clear marker for a BDSM session. Available in four sizes for a perfect fit: 105 mm, 120 mm, 135 mm, and 150 mm inner diameter.
Resistant to water, wear, and daily use. Weighing 475 g, this is the heaviest collar in our range — a natural statement piece that is felt on the neck and seen in the room. Delivered in an exclusive satin box with the Chambers of Love logo, with a discreet laser-engraved logo on the collar as a mark of quality.
Why choose the BDSM Steel Collar 20 mm Flat Slider?
✓ Massive 20 mm flat profile — The widest and most noticeable in the series. An intense contact surface that constantly reminds you of your role.
✓ Detachable O-ring on the slider — Attach the O-ring as a clear signal before a session, or remove it for discreet everyday wear. Versatile and practical.
✓ Adjustable slider — Sliding locking mechanism that opens and closes without tools. Perfect for those who want flexibility and quick adjustment.
✓ Premium stainless steel — Durable, hypoallergenic, and rust-free. No risk of discoloration or skin irritation, even with prolonged use.
✓ Two exclusive finishes — Mirror for maximum shine and attention, or Satin for a discreet, sophisticated matte surface.
✓ Four sizes for a perfect fit — Inner diameter 105 mm, 120 mm, 135 mm, or 150 mm. Measure your neck carefully and choose the size that fits comfortably without pinching.
✓ Statement piece — The wider 20 mm profile is visible under most clothing. For those who want to wear their lifestyle with pride and authority.
✓ Exclusive packaging — Delivered in a beautiful satin box with the Chambers of Love logo. The O-ring is stored in a separate box — perfect as a gift for yourself or someone you care about.
How to choose the right size
For the collar to fit comfortably and securely, it is important to measure correctly. Use a tape measure and measure the circumference around the part of your neck where you want the collar to sit. Divide the circumference by π (3.14) to get the inner diameter.
Size guide:
- 105 mm inner diameter — Corresponds to a neck circumference of approx. 33 cm. Choose for a slender neck or if you want the collar to sit high and tight.
- 120 mm inner diameter — Corresponds to a neck circumference of approx. 37.7 cm. Standard size that fits most.
- 135 mm inner diameter — Corresponds to a neck circumference of approx. 42.4 cm. Choose for a thicker neck or if you want the collar to sit loosely.
- 150 mm inner diameter — Corresponds to a neck circumference of approx. 47.1 cm. Choose for a very thick neck or if you want the collar to sit very loosely.
Tip: Add 1–2 fingers between your neck and the collar to check that the fit is comfortable. The collar should not feel constricting or cause discomfort when swallowing. Keep in mind that the 20 mm profile is significantly wider than 8/12 mm — it takes up much more space and can feel tighter at the same inner diameter. The flat profile is more comfortable than a round one at the same width.
Material and care
Material: Stainless steel (AISI 304 / 18/8), nickel and lead-free. Hypoallergenic and safe for sensitive skin.
Finish: Mirror polished or satin polished surface. Both finishes are corrosion-resistant and maintain their appearance with normal use.
Weight: 475 g — the heaviest collar in the Chambers of Love range. A palpable presence that is felt on the neck.
Care instructions:
- Clean with lukewarm water and mild soap if needed.
- Dry with a soft cloth after contact with water or sweat.
- For Mirror finish: polish with a microfiber cloth to maintain shine.
- For Satin finish: avoid abrasive cleaning agents that can damage the matte surface.
- Store in the included satin box when the collar is not in use.
- O-ring: clean separately and store in its box to avoid scratches.
Product Specification
| Product name | BDSM Steel Collar 20 mm Flat Slider |
| Material | Stainless steel (AISI 304) |
| Width | Ø 20 mm (flat profile) |
| Inner diameter | 105 mm / 120 mm / 135 mm / 150 mm |
| Finish | Mirror (glossy) or Satin (matte) |
| Locking system | Adjustable slider — sliding mechanism without tools |
| O-ring | Detachable, included with separate storage box |
| Weight | 475 g |
| Water resistant | Yes — withstands showering, bathing, and swimming |
| Brand | Chambers of Love |
| Packaging | Satin box with Chambers of Love logo + separate box for O-ring |
| Article number | ASB11020105A (Mirror), ASB11020105B (Satin), ASB11020120A (Mirror), ASB11020120B (Satin), ASB11020135A (Mirror), ASB11020135B (Satin), ASB11020150A (Mirror), ASB11020150B (Satin) |
Frequently asked questions about the BDSM Steel Collar 20 mm Flat Slider
What is the difference between 20 mm Fixed and 20 mm Slider?
20 mm Fixed has a permanent O-ring and an Allen screw as a locking system. 20 mm Slider has a detachable O-ring on a sliding mechanism and a slider as a locking mechanism — opens and closes without tools. Choose Fixed for a permanent symbol, Slider for flexibility.
How does the detachable O-ring work?
The O-ring sits on a sliding mechanism that can be easily attached to the collar when you want it visible — for example, before a session or at a fetish party. Remove it discreetly before work or in everyday situations. Store it in the included box as an intimate reminder. Many appreciate the ritual of taking the O-ring out of its box — it becomes a clear signal that the session is beginning.
What is the difference between Flat and round profile?
Flat profile (9/20 mm) has a wider, flat contact surface against the neck — a more intense reminder and more comfortable with a large width. Round profile (8/12 mm) has a classic, rounded shape. Choose flat for maximum impact and comfort with wide profiles.
What is the difference between Fixed and Slider?
Fixed has an Allen screw that requires tools to open — perfect for permanent wear and a genuine sense of submission. Slider has an adjustable slider that opens and closes without tools — ideal for those who want flexibility and quick adjustment.
What is the difference between Mirror and Satin finish?
Mirror is a high-gloss polished surface that reflects light and provides a shimmering, mirror-like effect. Satin is a matte, silky smooth finish that is more discreet and sophisticated. Both are equally durable and corrosion-protected.
Can I wear the collar in the shower or while swimming?
Yes, absolutely. The collar is made of high-quality stainless steel and tolerates water, sweat, and moisture without problems. Dry it afterwards to maintain finish and shine. Remove the O-ring if you swim to prevent it from coming loose.
How do I measure the correct size for my collar?
Measure the circumference around the part of your neck where you want the collar to sit. Divide the circumference by π (3.14) to get the inner diameter. Choose between 105 mm (narrow), 120 mm (standard), 135 mm (wide), or 150 mm (very wide). Keep in mind that the 20 mm profile takes up significantly more space than 8/12 mm.
Is the collar safe to wear 24/7?
Yes, the design is round and smooth with no sharp edges. Many wear their collars permanently as a symbol of their relationship or lifestyle. Make sure the size is correct so that the collar fits comfortably without pinching. The wider 20 mm profile can feel tighter than 8/12 mm at the same inner diameter — careful measurement is especially important.
Explore more from Chambers of Love
Love the BDSM Steel Collar 20 mm Flat Slider? Discover our complete range of BDSM collars and chokers:
- Metal BDSM Collars — See our full range of metal collars, chokers, and necklaces for BDSM and fetish.
- BDSM Metal Handcuffs — Match your collar with elegant stainless steel handcuffs.
- BDSM Metal Ankle Cuffs — Complete set with ankle cuffs in the same premium stainless steel.
- BDSM Collection — Explore our entire BDSM range.
Why shop for BDSM products at Chambers of Love?
✓ Swedish store with warehouse in Stockholm — Fast delivery within Sweden and the Nordics. DHL Express to service point or home delivery.
✓ Discreet delivery — All packages are sent in neutral, unmarked boxes. Nowhere does it state what the package contains.
✓ 14-day open purchase — Changed your mind? Return within 14 days for a full refund.
✓ Premium quality — We carefully select each product. Stainless steel, genuine leather, and body-safe materials.
✓ Personal service — Do you have questions about size, fit, or material? Contact us — we'll help you find the right product.