Master Series Detained
The Master Series Detained earns a LockedCage Score of 6.8/10 — the highest-rated budget metal cage under $50. Its 8/10 value rating leads all metal cages in the sub-$50 bracket, but durability scores just 5/10 due to chrome-plated zinc alloy that degrades within 6-12 months. At 150g it is 35% lighter than the BON4M (230g), making adaptation easier. Best for short-term experimentation before investing in premium stainless steel.
Check Price & AvailabilityMaster Series Detained Review: Can a $40 Metal Cage Compete?
An honest assessment of quality, durability, and whether budget metal is worth the compromise.
Reviewed by LockedCage Team · Feb 14, 2026 · 6 min read · Based on 14-day testing
Available at XR Brands retailers · Typical price $35-45
LockedCage Score
6.8 / 10
Solid but not premium
Rough edges, needs filing
Open design, easy clean
Best bang for buck
Chrome plating degrades
Verdict: Best Budget Metal Option
Good entry point to metal cages. Not built for permanent wear, but excellent value for experimentation.
Is the Master Series Detained Right For You?
The Master Series Detained occupies an interesting niche: it's a metal cage at a plastic cage price point. At around $40, it costs less than a CB-6000S but offers the psychological weight and security of steel. If you decide budget metal is right for you but want a lifetime device, the BON4M Stainless Steel is the natural upgrade path. However, the Detained comes with trade-offs in material quality and longevity.
The Good
- Affordable metal: At $40, it's the cheapest way to try metal chastity.
- Open-bar design: Easy to clean without removal. Good hygiene access.
- Lighter than premium: At 150g, easier to adapt to than 230g+ steel cages.
- Secure enough: Prevents most escape attempts. Better than plastic.
- Three ring sizes: Includes 38mm, 45mm, and 51mm options.
The Bad
- Chrome plating: Not stainless steel. Will degrade with extended wear.
- Rough edges: Requires filing before use. Quality control is inconsistent.
- Solid rings: Not hinged. Difficult to put on, can pinch hair.
- Limited lifespan: Expect 6-12 months before plating issues appear.
- Generic lock: Included padlock is low quality. Consider upgrading.
Quality Control Warning
Multiple users report rough edges, sharp welds, and inconsistent finishing on the Detained. Inspect carefully before first wear and file down any sharp spots. This is a budget product with budget QC.
Specifications & Sizing
| Spec | Master Series Detained |
|---|---|
| Material | Chrome-plated zinc alloy (not stainless steel) |
| Cage Length (internal) | 3.0″ (76mm) |
| Cage Diameter (internal) | 1.5″ (38mm) |
| Weight | ~150g (5.3 oz) |
| Ring Sizes | 3 solid rings: 38mm, 45mm, 51mm |
| Lock Type | Generic brass padlock (2 keys) |
| Design | Open-bar birdcage style |
| Price Range | $35-45 USD |
The Detained uses solid (non-hinged) rings. Measure your base circumference and divide by π (3.14) to get diameter. Add 3-5mm for comfort.
| Ring Size | Inner Diameter | Best For |
|---|---|---|
| Small | 38mm (1.5″) | Circumference 120-125mm |
| Medium | 45mm (1.75″) | Circumference 140-145mm (most common) |
| Large | 51mm (2.0″) | Circumference 160-165mm |
Free Tool
Not sure which ring size to order?
Our AI Cage Check analyzes your measurements and predicts fit for the Detained's three ring options.
Launch Sizing CalculatorMaster Series Detained vs. The Competition
vs. BON4M Stainless Steel
ComparisonOur take: BON4M is 5x the price but will last 10x longer. Choose Detained for experimentation, BON4M for permanent wear.
Detained wins on:
Price ($40 vs $219), lighter weight, easier to try
BON4M Stainless Steel wins on:
Material quality, durability, hinged ring, lifetime device
vs. CB-6000 (Plastic)
ComparisonOur take: CB-6000 is more comfortable for sleep but less secure. Detained feels more "real" but requires more adaptation.
Detained wins on:
Security, psychological weight, metal feel, hygiene
CB-6000 wins on:
Comfort, lighter (100g vs 150g), better ring system, proven design
vs. Generic Amazon Steel Cages
ComparisonOur take: Detained has slightly better QC than no-name brands, but not by much. Both require inspection and filing.
Detained wins on:
Brand reputation (XR Brands), slightly better finishing
Generic Amazon Steel Cages wins on:
Sometimes cheaper ($25-35), essentially the same product
What Users Say
“Good starter metal cage. I filed down a few rough spots and it's been fine for 3 months. Not sure how long the chrome will last though.”
“The CHASTE BIRD 2022 [similar design] while giving me no chaffing, is cheap and because of that isn't the most comfortable. Also doesn't feel high-quality, so I have moved on to something more high-quality.”
“For the price, it's decent. But if you're serious about long-term wear, save up for a Mature Metal or BON4. This is a "try before you buy" cage.”
“The lock it comes with is garbage. I replaced it with a better padlock and it's been solid for short-term wear.”
Common Questions
Yes, with caveats. The Detained is lighter than premium steel cages (around 150g vs 230g+), making it easier to adapt to. However, the chrome plating can have rough edges that require filing. We recommend inspecting carefully before first wear and using our Cage Check tool to verify sizing.
Possibly. The Detained uses chrome-plated zinc alloy, not solid stainless steel. With proper care (dry thoroughly after washing, avoid prolonged moisture), it should last 6-12 months. However, users report plating degradation after extended 24/7 wear. For permanent devices, invest in stainless steel.
The Detained is heavier (150g vs 100g) but more secure. The metal construction prevents the "squeeze and pull" escape method that defeats many plastic cages. However, the CB-6000 is more comfortable for sleep and has better ring options. Choose Detained for security, CB-6000 for comfort.
No. Like all metal cages, the Detained will trigger metal detectors and body scanners. You will be subject to secondary screening and pat-down. For air travel, switch to a resin cage before your trip.
The Detained includes three solid rings: 38mm (1.5"), 45mm (1.75"), and 51mm (2"). These are welded solid rings, not hinged, which can make initial fitting challenging. Measure carefully using our sizing guide before purchasing.
Moderately. The open-bar design allows good hygiene access, but the solid rings can pinch body hair and the weight becomes noticeable during exercise. Most users report needing 1-2 weeks to acclimatize. Not recommended for 24/7 wear beyond 2-3 months due to plating concerns.
References
- [1]ASTM F138 defines the composition and mechanical requirements for wrought 18Cr-14Ni-2.5Mo stainless steel (316L) used in surgical implants. Chrome-plated zinc alloy does not meet this standard and is unsuitable for long-term body contact. — ASTM F138 — Standard for Surgical Implant Steel
- [2]EU REACH Regulation Entry 27 restricts nickel release from articles in prolonged contact with skin to 0.5 micrograms/cm2/week. Degraded chrome plating may expose zinc alloy substrates that exceed this threshold. — EU REACH Regulation — Entry 27 (Nickel)
- [3]NICNAS (now AICIS) safety assessment of nickel compounds confirms nickel as a leading cause of contact dermatitis, affecting 10-20% of the general population. Risk increases when protective plating degrades. — NICNAS — Nickel Compounds Human Health Assessment
- [4]ISO 10993-10:2021 outlines sensitization testing for devices in prolonged skin contact. Chrome-plated base metals require additional biocompatibility screening versus solid stainless steel. — ISO 10993-10:2021 — Irritation and Sensitization Tests
See Also
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Ready to try budget metal?
The Master Series Detained is the most affordable way to experience metal chastity. Perfect for experimentation before investing in premium steel.