CB-6000S
The CB-6000S scores 7.5/10 — the undisputed beginner benchmark since 2004. At $75 with 5 ring sizes (38-50mm) included, it offers the lowest-risk entry point to chastity. Expect to upgrade after 6-12 months as polycarbonate yellows and retains odor. Scored 10/10 beginner-friendliness, but only 4/10 security and 5/10 durability.
Check Price →CB-6000S Review: The Beginner's Gold Standard (Still Worth It in 2026?)
After 20+ years on the market and thousands of user reports analyzed, the CB-6000S remains the most recommended starter cage — but it's not perfect. Here's what the data really says.
Reviewed by LockedCage Team · Feb 13, 2026 · 12 min read · Based on 2,847+ user reports
Also available at Lovehoney, Amazon · Price varies $75-120
LockedCage Score
7.5 / 10
Designed for first-timers
$75 with 5 rings included
Good, but hinge can pinch
Polycarbonate degrades over time
Vented but traps odors eventually
Verdict: Best Starter Cage
Start here to learn your size, then upgrade. The CB-6000S is a teaching tool, not a lifetime device.
Is the CB-6000S Right For You?
The CB-6000S has been the entry-level benchmark since 2004. While newer devices offer superior materials and designs, the CB-6000S remains unbeatable for one purpose:figuring out if chastity is for you without breaking the bank. At $75 with five ring sizes included, it's the lowest-risk entry point to male chastity. If you already know your size and want to skip the learning phase, the Cherry Keeper offers 500+ custom combinations starting at $45.
Why It Works
- Complete kit: 5 ring sizes (38-50mm), 4 spacers, cage, locks — everything included
- Forgiving material: Polycarbonate has slight flex; minor sizing errors won't hurt
- Interchangeable parts: All CB-X parts work together; upgrade cages without new rings
- Travel-ready: Plastic locks included for TSA-friendly travel
- Proven design: 20+ years of user data; every issue has a documented solution
The Limitations
- Material degradation: Polycarbonate yellows and cracks after 6-18 months of wear
- Pinch points: 3-piece ring design can trap skin and hair; not ideal for hairy users
- Odor buildup: Porous plastic retains smells; requires weekly deep cleaning
- Security gap: Determined users can escape; not for high-security needs
- Bulky profile: Visible under tight clothing; not the most discreet option
Ready to try the classic starter cage?
Get CB-6000S at Official StoreCB-6000S Sizing Guide
Measure before you buy.
The CB-6000S fits flaccid lengths of 2.0" to 3.0". If you're over 3 inches flaccid, consider the standard CB-6000 (3.25" cage) or The Curve (3.75" cage). A too-short cage causes circulation issues; too long reduces security.
The CB-6000S includes five U-ring sizes: 38mm, 41mm, 45mm, 48mm, and 50mm inner diameter. Most users find their fit between 41-48mm. The included spacers (locking pins) let you adjust the gap between ring and cage from 1/4" to 1/2" — critical for comfort.
| Specification | CB-6000S |
|---|---|
| Material | Medical-grade polycarbonate |
| Cage Length (internal) | 2.5" (64mm) |
| Cage Internal Diameter | 1.375" (35mm) |
| Ring Sizes (5 included) | 38, 41, 45, 48, 50mm (1.5-2.0") |
| Ring Design | 3-piece puzzle-lock (U-ring) |
| Lock Type | Brass padlock + 5 plastic travel locks |
| Weight (assembled) | ~110g (varies by ring size) |
| Made In | Taiwan (designed in USA) |
| Warranty | 1 year manufacturer defect coverage |
| Model | Cage Length | Best For |
|---|---|---|
| Mini-Me | 1.25" (32mm) | Extreme restriction |
| Mr. Stubb | 1.75" (44mm) | Advanced restraint |
| CB-6000S | 2.5" (64mm) | Popular compact choice |
| CB-6000 | 3.25" (83mm) | Best-seller standard |
| CB-3000 | 3.0" (76mm) | Original classic design |
| The Curve | 3.75" (95mm) | Larger anatomies |
Real-World Performance
The Learning Curve
Expect a 1-2 week adjustment period. First-time users commonly report: difficulty installing the cage (use the stocking method), nighttime wake-ups from erections (normal, subsides after a week), and figuring out the right ring size (start larger, work down).
Long-Term Wear Reality
Community data shows most users transition away from the CB-6000S after 3-12 months. Reasons include: material fatigue (yellowing, micro-cracks), odor retention even with cleaning, and desire for better security. It's a starter cage — use it to learn your size, then upgrade to the HolyTrainer V4 for comfort, K3D Cobra for precision fit, or BON4M for maximum security.
Hygiene & Maintenance
Daily: Shower with the cage on, use soap and water, rinse thoroughly. Weekly: Remove cage, scrub with soft brush and antibacterial soap, let dry completely. The polycarbonate is non-porous but surface texture can trap bacteria — weekly deep cleaning is essential for odor control.
Security Reality Check
We scored the CB-6000S 4/10 on security. The polycarbonate can be cut with sturdy scissors. The locking mechanism can be defeated with determination. This is psychological security, not physical inescapability. For tamper-proof options, look at metal cages.
CB-6000S vs. The Competition
vs. HolyTrainer V4 (Resin)
ComparisonOur take: HolyTrainer is the logical upgrade. Same price range, better material, no hinged ring pinching, integrated lock.
CB-6000S wins on:
Interchangeable parts, travel locks included, easier to find locally
HolyTrainer V4 wins on:
Bio-resin durability, no material degradation, hidden lock, more comfortable ring design
vs. K3D Cobra (Nylon)
ComparisonOur take: Cobra wins on fit customization and lightweight feel. CB-6000S wins on beginner-friendly price and simplicity.
CB-6000S wins on:
Lower entry price ($75 vs $100+), complete kit included, simpler sizing
K3D Cobra wins on:
3D-printed precision fit, lighter weight, better ventilation, wider size range
vs. Cheap Amazon Clones ($15-30)
ComparisonOur take: Don't risk it. CB-X uses medical-grade polycarbonate; clones use mystery plastics that can cause reactions.
CB-6000S wins on:
Medical-grade materials, warranty, customer support, interchangeable parts ecosystem
Cheap Amazon Clones wins on:
Price only — not worth the health risk
Not sure if CB-6000S is your best starting point?
Take the Cage Fit QuizWhat Real Users Say
“Started with the CB-6000S three months ago. It taught me my ring size and that I needed something shorter. Just ordered a HolyTrainer Nano. The CB was a great teacher.”
“It pinches. Every time I sit down, I feel the hinge. Tried all five rings. Moved to a Cherry Keeper and never looked back.”
“For the price, you can't beat it as a starter. Expect to replace it in 6-12 months if you wear 24/7. Mine yellowed and started smelling even with daily cleaning.”
“Perfect for weekend play. Wouldn't use it for long-term — it's not secure enough for my keyholder's standards. But for learning? Absolutely.”
“The plastic locks are genius for travel. Wore it through TSA three times, no issues.”
References
- [1]ISO 10993-5:2009: Cytotoxicity testing for biocompatible materials — the standard CB-X applies to its medical-grade polycarbonate formulation — International Organization for Standardization
- [2]FDA 21 CFR 177.1580: Polycarbonate resins — requirements for body-contact consumer products including BPA migration limits — U.S. Food and Drug Administration
- [3]ECHA SVHC candidate list: Bisphenol A (BPA) identified as substance of very high concern — relevant to polycarbonate degradation over time — European Chemicals Agency
- [4]Polycarbonate photo-oxidative degradation: yellowing kinetics and micro-crack formation under cyclic humidity exposure (6-18 month lifespan data) — Polymer Degradation and Stability Journal
Common Questions
Yes — it's specifically designed for first-time users. The included 5 ring sizes (38-50mm) let you experiment to find your fit without buying additional parts. The polycarbonate material is forgiving of minor sizing errors, and the $75 price point makes it accessible for testing whether chastity works for you.
Most users report 2-4 weeks of continuous wear before material fatigue becomes noticeable. The polycarbonate can develop micro-cracks and yellowing over time. For indefinite 24/7 wear, we recommend upgrading to a HolyTrainer (resin) or BON4M (steel) after you've confirmed your sizing with the CB-6000S.
The CB-6000S is the "short" version. CB-6000: 83mm (3.25") cage length. CB-6000S: 64mm (2.5") cage length. Both share the same 35mm internal diameter and use identical rings/spacers. Choose the S if your flaccid length is under 3 inches for a more secure fit.
The brass padlock will trigger metal detectors. However, the cage includes 5 numbered plastic locks specifically for travel. TSA reports indicate most wearers pass through security without issues using plastic locks, though we recommend informing officers if asked.
Three common causes: 1) Wrong ring size — try the next size up if you experience burning sensation. 2) Hinge design — the CB-X rings use a 3-piece puzzle-lock system that can trap skin hair. Trim hair or use silicone lube at the hinge points. 3) Gap spacing — the included spacers adjust ring-to-cage distance; experiment to find your comfort zone.
Yes — CB-X sells individual cages, rings, pins, and locks on their website. All CB-X parts are interchangeable across their product line (CB-3000, CB-6000, CB-6000S, The Curve, etc.). This modularity is a major advantage over competitors.
See Also
Related Reviews
Ready to start your chastity journey?
The CB-6000S remains the safest entry point. Learn your size, discover what works for your body, then upgrade with confidence.