CB-X The Curve 3.75-Inch Polycarbonate Chastity Cage Kit – Black is a modular set built around a curved, ventilated black polycarbonate cage. The Stag Standard listing uses store SKU THECURVEBLK and currently includes five U-rings, four spacer sizes, multiple locking pins, two bases, a brass lock with keys, and numbered plastic locks.
The Curve is the longest of the current shapes shown in the manufacturer’s sizing guide. That makes its published dimensions important comparison facts, not a universal-fit promise or a recommendation for continuous wear. Measure first, test the assembled device without locking it, begin with a short supervised wear check, and keep an immediate removal method available every time.
Published kit specifications
- Color: Black.
- Cage material: Polycarbonate, according to the current store record.
- Inner cage length: 3.75 inches / 95.25 mm.
- Inner cage diameter: 1.5 inches / 38.1 mm.
- U-rings: 1.5, 1.625, 1.75, 1.875, and 2 inches.
- Spacers: 0.46, 0.59, 0.71, and 0.84 inches.
- Lock choices: Brass lock with keys and numbered plastic locks.
- Power: Manual; there is no motor, battery, charging system, or app.
Those values describe the current listing and the manufacturer’s published Curve format. They do not establish clearance around every anatomy, a safe wear duration, medical suitability, or freedom from pinching. The stored 0.79-pound value is a shipping record and is not presented as device weight.
Compare the current CB-X collection, products carrying the CB-X product tag, and the broader Chastity and Denial tag.
Measure cage and base-ring fit
Cage length and inner diameter are only two parts of fit. The base ring and spacer also affect separation, pressure, movement, urination clearance, and whether skin can become trapped between parts. Measure when the body is relaxed, use the manufacturer’s received instructions as the controlling assembly guide, and never force anatomy into a smaller configuration.
- Confirm that the published 3.75-inch inner cage length and 1.5-inch inner diameter are appropriate comparison points before opening or assembling the kit.
- Review all five U-ring sizes rather than assuming the smallest ring provides the best security.
- Choose a starting ring and spacer that allow the parts to sit without sharp pressure, pinched skin, restricted urination, coldness, numbness, or color change.
- Recheck fit while standing, sitting, walking, and bending because posture can change the pressure points.
- Expect body size and fit to change over time; the manufacturer notes that weight changes can alter U-ring fit.
If the available ring and spacer combinations do not provide an uncomplicated removable fit, stop rather than improvising a tighter ring, altered part, extra fastener, or homemade spacer. Browse the full Chastity and Pup Play category or the Chastity and Denial department for other current formats.
Assemble and test without locking
- Wash and dry hands, then inspect the cage, each U-ring, every spacer and pin, both bases, the brass lock, keys, and plastic locks.
- Reject any part with a crack, sharp edge, burr, deformation, loose surface, blocked opening, corrosion, or lock damage.
- Follow the received CB-X instructions to assemble the chosen configuration. Keep skin clear of every joint as parts meet.
- For the first fit, leave the device unlocked and keep the keys or release method in hand.
- Stand, sit, walk, bend, and urinate while the device remains immediately removable.
- Remove it after a short test, inspect the skin and device, and reassess instead of extending the first session automatically.
The manufacturer publishes an “up to 12 hours” assessment for new users before extended wear. That is an upper test framework from the maker, not a minimum, a first-session target, or proof that 12 hours is safe for an individual. Start much shorter, remove and check, and do not sleep or leave the wearer unattended during a fit test.
Lock choice and emergency-removal planning
Before any lock is closed, identify exactly which lock will be used, verify that its release works, and decide who holds the working key or cutting tool. A numbered plastic lock can show whether it has been replaced, but numbering does not make it emergency equipment, tamper-proof, travel-approved, or suitable for every situation.
Keep at least one brass-lock key immediately accessible to the wearer and keep a duplicate in a separate known location. If using a plastic lock, keep a tool capable of cutting that exact lock without contacting skin. Do not rely on a distant partner, mailed key, app, vehicle, hotel safe, or unavailable third party as the only release route.
Never lock the device for sleep, driving, air travel, swimming, intoxication, strenuous exercise, medical procedures, security screening, or any situation in which rapid removal could be delayed. A locking accessory must never prevent the wearer from withdrawing consent or stopping use.
Fit checks and stop signs
Check sensation, temperature, color, swelling, pressure, skin condition, mobility, and urination repeatedly. A device can feel acceptable at first and become unsafe as tissue changes, movement shifts a part, or an erection changes pressure. Lubrication or numbing products must not be used to conceal pain, pinching, or loss of sensation.
Remove the entire device immediately for pain, numbness, tingling, coldness, marked swelling, unusual color change, loss of sensation, dizziness, broken skin, bleeding, a trapped fold of skin, a stuck lock, or difficulty urinating. Do not wait for the next planned check. Seek urgent medical help if removal is not possible or symptoms do not resolve promptly after removal.
Do not use on irritated, infected, injured, recently operated, or recently pierced skin. Do not use it to diagnose, prevent, or treat a health condition. If circulation, nerve, urinary, skin, bleeding, or medication concerns could affect use, obtain advice from a qualified clinician before considering the product.
Urination and hygiene checks
The cage is ventilated and has an opening, but that design does not guarantee unobstructed urination or complete cleaning while worn. Test urination only while the device is unlocked and immediately removable. If flow is restricted, redirected in an unmanageable way, painful, incomplete, or impossible, remove the device and do not continue with that configuration.
Moisture, residue, and friction can collect around cage openings, the base ring, spacers, pins, and contact areas. Remove the device for cleaning and for complete skin inspection rather than treating ventilation as a substitute for washing. Dry the wearer and every product surface before reassembly. Read the Materials and Care guide for general handling principles.
Cleaning, drying, and storage
Follow the received manual first. Separate removable pieces and wash accessible surfaces with a compatible toy cleaner or mild, unscented soap and warm water if the label permits. Use a soft brush or cloth around openings, grooves, spacers, and pin channels without scratching the polycarbonate. Rinse away cleaner residue and dry every surface completely before storage or reassembly.
Do not boil, machine wash, dishwash, bleach, heat, steam, microwave, abrade, or expose the parts to alcohol, solvents, oils, or unapproved disinfectants unless the received manufacturer instructions specifically allow that method. Polycarbonate wording alone does not establish compatibility with every cleaner, lubricant, temperature, or sterilization process.
Store the disassembled, dry kit in a cool, ventilated place away from direct sunlight, heaters, sharp objects, loose keys, oils, and chemicals. Keep each working key identifiable. Replace a component that cracks, warps, roughens, discolors unexpectedly, no longer aligns, or does not release reliably. Hygiene-sensitive returns may be limited after opening, so review the Returns, Refunds, and Hygiene policy first.
Partnered-use planning
Before partnered use, agree on the purpose, duration, check-in schedule, release word or signal, key location, and reasons for immediate removal. The wearer must retain a reliable way to stop. Do not make release conditional on completing a task, tolerating discomfort, paying money, or waiting for someone who is asleep, away, or unreachable.
Stay within hearing and reach during early sessions. Recheck the device after movement and after any change in sensation. Chastity play does not establish a person’s role, orientation, identity, relationship structure, or experience level; those meanings belong to the people involved.
For product questions that cannot be answered by the listing or received manual, use the contact page before use.
Exact listing summary
- Product: CB-X The Curve 3.75-Inch Polycarbonate Chastity Cage Kit – Black.
- Store SKU: THECURVEBLK.
- Current store price: $153.99; the live product page controls at checkout.
- Published inner cage size: 3.75 inches long and 1.5 inches in diameter.
- Fit pieces: five U-rings, four spacer sizes, multiple locking pins, and two bases.
- Locks: brass lock with keys and numbered plastic locks.
- Fit boundary: dimensions are comparison facts, not a universal-fit or wear-time promise.
- Safety boundary: test unlocked, keep an immediate removal method, and remove for any stop sign.
- Care boundary: follow the received instructions and fully dry separated parts.
- Shipping record boundary: stored shipping weight is not presented as device weight.
Before ordering, verify current stock, price, and configuration on this page. Review discreet shipping information or return to the full shop to compare current products.
