The Lockmaster 3.75-Inch Prisoner Cock Cage is a rigid silver chastity device with an open-bar aluminum-alloy cage, separate base ring, keyed lock, and two included keys. The two-piece interlocking construction is designed to secure the cage to the ring while leaving the enclosed area visible and accessible. Compare it with other options in the Chastity & Pup Play collection or browse the Electric brand collection.
Verified product details
| Store SKU | ELD-LM-006 |
|---|---|
| Maker SKU | LM-006 |
| GTIN / UPC | 4890808285329 |
| Color | Silver |
| Material | Aluminum alloy |
| Construction | Rigid two-piece interlocking cage and base ring |
| Closure | Keyed lock |
| Package contents | Cage, base ring, locking hardware, and two keys |
| Approximate cage length on the current store page | 3.75 inches |
| Approximate inner cage width on the current store page | 1.5 inches |
| Approximate base-ring diameter on the current store page | 2.75 inches |
| Maker-published specification | 47 mm diameter and 158.5 g; the measured component is not identified |
Why the material is listed as aluminum alloy
The current first-party product title still uses the words “stainless steel,” but the maker’s description, material specification, meta description, and photographed retail box all identify the product as aluminum alloy. This page therefore uses aluminum alloy as the supported material and does not treat the older title or existing URL slug as material evidence.
The maker also publishes a 47 mm diameter without naming the measured component. That figure is about 1.85 inches, but it should not be substituted for the store page’s approximately 1.5-inch inner cage width or 2.75-inch base-ring diameter. Those measurements describe different components and are presented separately rather than forced into a false conversion.
Fit is individual
A rigid metal cage does not stretch to correct a poor fit. Compare the cage length, inner width, base-ring diameter, lock position, and the gap created after assembly before use. The listed measurements are approximate product dimensions, not body measurements or a universal-fit promise. Read our chastity-cage fit, materials, and safety guide before choosing a device.
Begin with a short, fully monitored fit check. Confirm that skin is not trapped between components and that the cage remains stable without pinching, pulling, or concentrating pressure at the ring or lock. Do not rely on pain tolerance, swelling, or forced compression to make the device fit. Remove it promptly for pain, numbness, tingling, coldness, marked swelling, skin-color change, loss of sensation, broken skin, or difficulty urinating.
Locking and rapid-removal planning
Two keys are included. Before locking the device, test both keys, confirm the lock opens smoothly, and keep at least one key immediately accessible to the wearer or a trusted person who can remove the device without delay. Do not store every key where it could become unavailable during travel, sleep, separation from a keyholder, or an emergency.
For partnered or keyholder play, agree on consent, duration, check-ins, privacy, stop words, and who holds each key before the device is locked. Consent can be withdrawn at any time. A partner, keyholder, manufacturer duration claim, or role-play agreement never overrides symptoms or the need for prompt removal. Do not use the device when immediate removal cannot be arranged.
Assembly and first use
- Inspect the cage bars, base ring, connection points, lock, and keys. Do not use the product if you find a sharp edge, burr, crack, bent bar, rough finish, loose hardware, or malfunctioning lock.
- Read the package instructions and identify how the two pieces interlock before placing them on the body.
- Use only a lubricant permitted by the product instructions, and keep lubricant away from the lock if the maker warns against it.
- Assemble slowly, keeping skin and hair clear of the joint and locking area.
- Check circulation, sensation, skin temperature, color, comfort, and ability to urinate soon after locking and repeatedly during wear.
- Remove the device at the first sign of a fit, circulation, skin, urination, or lock problem.
Avoid numbing or desensitizing products because they can hide pain, pressure, or developing injury. The maker markets the product for short- and long-term use, but no single duration is safe for every person. Start with short monitored sessions and increase duration only if the exact fit remains comfortable and the device can be removed immediately.
Open-bar construction
The open bars provide visibility and access around the enclosed area, but they do not prevent swelling, pressure, trapped skin, or hygiene problems. Check exposed skin and every contact point rather than assuming the open design guarantees airflow or cleanliness. The rigid metal bars may feel less forgiving than a flexible resin cage if size, angle, or ring placement is wrong.
For a transparent nonmetal comparison, see the Lockmaster 3.5-Inch Side-Lock See-Through Cage. For a black resin option, compare the Lockmaster 4-Inch Bio-Based Resin Cage. Each page controls its own material, dimensions, lock design, care directions, and availability.
Cleaning, drying, and inspection
The manufacturer describes this aluminum-alloy product as waterproof and easy to clean. Those words do not establish a submersion depth or duration and do not mean the product is boil-safe, dishwasher-safe, machine-washable, or chemically sterilizable. Follow the package directions for the exact cleaning method. Rinse away any permitted cleaner and dry the cage, ring, joint, lock exterior, and keys completely before storage.
Reinspect the finish and connection points after cleaning. Stop using the device if the coating or finish changes, the metal develops roughness or corrosion, a bar bends, the lock sticks, or any part can no longer be cleaned and dried thoroughly. General care guidance is available in our Materials & Care hub and cleaning and storage guide; the product instructions take priority.
Storage and ordering notes
Store the fully dry cage, ring, lock, and keys together in a clean, dry container away from direct sunlight, high heat, moisture, children, pets, and anyone who should not have access. Keep a spare key identifiable and accessible rather than loose in the package. Browse the Chastity & Denial tag or return to the full shop to compare other products.
Review Shipping & Discreet Packaging for parcel information. Opened intimate products can have hygiene-related return restrictions, so check Returns, Refunds & Hygiene before opening the package.
