FMJ Custom Size (Cage Only)

(3 customer reviews)


FMJ can be customized to the length and width that you want.  The full calculated price that is based on total material and design for your approval and payment. Resin Prototype for final approval prior to your custom design being manufactured.


Custom Size

What custom size would you like? Cage Width and Length and Gap length.

Image of your custom Design

Upload an image/drawing of what you would like us to design and make for you. This is a professional design team that is interested in designing you a perfect chastity device. Please load personal photos into the forum page not in this area.

(max file size 1 GB)

(max file size 1 GB)

Length A

Total Length of Cage

Circumference or Diameter B

Circumference/diameter of base of cage

Gap Length

Gap Length Required

Product Description

The FMJ offers the utmost in comfort and security and sensory denial. The ring design is extremely comfortable and secure. The cage portion has one bottom opening allowing use at urinals, ventilation and hygiene. This cage totally restricts you and your key-holder from touching your penis for sexual pleasure and gives the total Key-holder control over the sexual fulfillment of the wearer.

FMJ can be customized to the length and width that you want.  The Final price will be calculated based on total material and design cost. Below is estimate cost.  A Resin Prototype for final approval prior to your custom design being manufactured into precious me

4 standard size surgical nylon Ghost 300 set

4 standard size surgical nylon Ghost 300 set

A= Length

B = Diameter / Circumference at base

Cage to Base Ring Spacing – There are three space sizes 7mm – 9/32″, 10mm – 7/16″, 13mm -1/2″

Base Ring = 8mm – 5/16″  Double Base Ring = 16mm – 5/8″

Total cage length
With single base ring* and standard 10mm spacing**:
Regular: 60mm (2 – 11/32″)
Medium: 80mm (3 – 5/32″)
Tall: 110mm (4 – 21/64″)
Grande: 128mm (5 – 11/128″)

*Add 8mm for double base ring.
** Subtract 3mm for 7mm gap. Add 3mm fro 10mm gap.

Cage dimensions of the Standard Cage

Regular – A= 42mm (1 -41/64″) B=28mm (1 -7/64”) / 87mm (3.5 inches) – Round Shape
Medium – A= 62 (2 7/16″) B = 33mm (1 – 1/4”) / 103mm (4 inches) – Oval shape*
Tall – A= 92mm ( 3 -5/8″) B = 33mm (1 – 1/4”) / 103mm (4 inches) – Oval shape*
Grande – A = 110mm (4 – 3/4″) B = 39 (1 – 1/2”) / 122mm (4 – 2/3″) – Oval shape*

* The oval shape is to reduce the profile so that it less noticeable under your clothing

standard size chart picture

If you required a different size than have a Custom Made Cage made for your comfort and desire.

If your are not quite sure how to measure yourself then read our page on How to Measure Yourself a Custom Chastity Device



Surgical Nylon – This is the most superior light weight material available. Surgical Nylon is very durable, wear-resistant, feels more comfortable on skin compared to all other plastics. This material is impervious, does not allow for bacterial growth. Perfect for the man that has an active lifestyle, work and play and wants to be caged 24/7/365.

Stainless Steel – A robust metal with a rough, pitted surface. Steel is available in a variety of polished and matte finishes. 420 Stainless Steel infused with bronze, and has a final composition of approximately 60% steel and 40% bronze. It is heat resistant to 831ºC / 1528ºF degrees. Higher temperatures may significantly change material properties. This material is dishwasher safe, is watertight, is not recyclable

Gold Plated Metals – under-plate the brass with palladium to provide strength and durability then plated with .5 microns of the precious metal.  The outcome is a beautiful shiny luster with a high level of detail and smooth surface finish.The Brass consists of 15% zinc, 5% tin, and 80% copper.

Silver – Sterling Silver is a mixture of 92.5% pure silver and 7.5% copper. The very small amount of copper gives the metal enough strength and hardness. This material is dishwasher safe, is watertight

14k Gold – As a precious metal, gold is both malleable and ductile and beautiful metal to wear and look at. Gold is a heavy metal and may not be the preferred 24/7/365 wearing product without extra support. ONLY AVAILABLE ON CUSTOM MADE PRODUCTS

18k Gold – As a precious metal, gold is both malleable and ductile and beautiful metal to wear and look at. Gold is a heavy metal and may not be the preferred 24/7/365 wearing product without extra support. ONLY AVAILABLE ON CUSTOM MADE PRODUCTS

Platinum – Solid Platinum has a bright silver-white color. It goes through extensive hand-polishing to give it a smooth, shiny finish. Platinum consists of 95% Platinum, 5% Ruthenium. Please note that the volume of your finished product may be up to 10% less than the original model due to shrinkage and polishing loss. ONLY AVAILABLE ON CUSTOM MADE PRODUCTS


3 reviews for FMJ Custom Size (Cage Only)

  1. Greg (verified owner)

    Dear Lady Fox,
    “The Full Metal Jacket device I purchased is excellent!
    Well designed. Ergonomically well thought out, light but durable, easy to put on and very hard to get off if properly sized. I actually can’t take mine off without either destroying it or ripping my balls off (not into being a castrate).
    I am looking forward to getting the device in stainless now. It’s great that I was able to try it in plastic first.
    Custom Chastity’s service is first rate and they communicate
    ! They tell you where you are at as they produce and ship your device. Nice difference.
    I have about a dozen trap ball devices and this is the best designed and most effective.”

    Cheers G.

  2. Ashley (verified owner)

    I really love my custom sissy fmj! It’s super small, fits perfectly and is bright pink, all a gurl needs. X

    Lady and Mr Fox are amazing and courteous hosts to work with, they turned a really simple drawing I did into a cage that has changed my life

    Thankyou guys! And I urge anybody looking for custom fmjs to do just that

    • Taylor

      Glad to see another Happy customer.

  3. Jerry

    Hi, i recently purchased two Custom Chastity GHOST Chastity Devices. The first was a smaller version than I am currently wearing and I fell in love with it but I had misjudged my Ring size, Gap and Cage length. After a few days wear i noted i was getting rub marks on my skin so i removed the device and figured out that i not the device was at fault for not doing the measurements and just guessing based on what I thought made a more secure fit.

    i immediately ordered a more conservative proportioned GHOST with the same feature, Double Ring with Wing option, Maximum Gap available , ( i have low hangers and large balls) and the Tall Cage (as i also and fairly well endowed and uncut need the extra room for the excess skin being uncut).

    The replacement device arrived pretty quick and it has not been off of me since i finally got the correct fit. i love how light the device is, the colors offered, (i chose Pink of course) and ran it through the Dishwasher as instructed to set the colors. The overall comfort is remarkable, the security of the device, impossible to remove without taking effort to destroy it without Keys it appears and the overall ease of wearing, the Fit is incredible and the Wing feature keeps the GHOST in place as it was intended to be worn. What a great feature.

    Overall of all the low to mid range Chastity i have ever worn (CB-XXX and (s), Holy Tainers and at least 4 or 5 more some hard some silicone). This is the best fitting and most comfortable device i have ever worn in even some of the higher end Herman custom made steel devices that i have worn.

    Well worth the cost and an extreme value for your Money i highly recommend the GHOST as i am wearing now as Best Value on the Market of existing Chastity Ball Trap Devices

    Locked Pet

Only logged in customers who have purchased this product may leave a review.

You may also like…