Jail Bird



Punishment Pin 1

SKU: 116 Category: Tag:


The JAIL BIRD male chastity device is our most popular design. The stainless steel bars are very rigid. They will not bend or pinch. Combines comfort with security, and great looks. Has a very low profile that is easy to hide under clothing and is perfect for 24/7/365 wear.

The open design makes it easy to clean without removing the cage. This makes it possible to wear the device indefinitely. Great for Internet or long-distance relationships.

Customizing your Jail Bird

The punishment pin  and the security screws options are available for this item.  The Jailbird must be 1 1/4″ inside diameter or larger and a length of at least 1 1/2″ for the punishment pin option to fit.

The cage for Jailbird can be built with more than just the two rings. Please see the final image on the gallery below for an example. Extra rings are priced at $80 each.  Any Jailbird  2″  or longer in length can have the cage made with three rings.  3″ in length or longer can have a total of four rings.
 If you have any questions about these options, please feel free to email us.  

Please know that a proper size lock should sit sideways.
If adjustments are needed in the future, we will need the
cage and ring returned.

Build time is 6-8 weeks from date of order.
Please email your rush request to maturemetal@grandecom.net, an invoice will then be sent to you.   Your build time will start the day the invoice is paid.  Mailing time is not included in the build time.
The prices are in addition to the cage order.


Item is constructed of 316 surgical stainless steel using 1/4″ and
1/8″ round bar.
Base ring is constructed on 1/4″ round bar.
Light Weight 5 OZ. (For average size). Lock not included

Your device will be mailed USPS priority mail (no signature required) within the US or USPS priority express international for orders outside the US.
You are responsible for ALL duties and taxes issued by your country. Please check with your local postal service if you have any questions about your duties and taxes.



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Mature Metal
Average rating:  
 80 reviews
by Phil on Mature Metal

Just took delivery of my jailbird and what can I say other than wow, the build quality is brilliant and the attention to detail is second to non.
I went for the double base ring and double locking so definitely no escape and the added bonus of a clunking padlock for that little reminder that your no longer in control. Thank you mature metal for such a nice cage.

by Andy on Mature Metal
Eight Months

It has been eight months since I received my Jailbird and have been locked in it continuously except for playtime releases. It is so comfortable that I rarely know that I am wearing it. The quality is great and it looks as good as it did the day it arrived. Cleaning is simple with the cage on which means it does not need to be removed which is great for long lock ups. Correct sizing is important and following Mature Metals advice that the cage should fit like a glove. I wasted money on multiple cheap uncomfortable cages, so glad I made the purchase!

by lilandlocked on Mature Metal

A++++ Received the Jailbird on 6/29 and been wearing it since. Been released 3 times for overnight/play. Waited until now to give a review because I wanted to test it out. Great craftsmanship! It exceeds all my expectations. Above all it's very comfortable to wear long term and easy to clean without removal for a true 24/7 fit. I wish I would have made this purchase a long time ago! My advice buy the rings and measure 10,000 times. When I was trying to find the correct ring for my fit I would wear it a couple of days even to bed until I had it narrowed down. Thanks again!

by Brad on Mature Metal

I have purchased and used various "plastic" devices over nearly 18 years with varied success. I had heard for awhile that getting a metal CB was better so I researched and choose MM. I got my JailBird a couple months ago and immedialty I discovered the advantages and will never go back to a plastic style. First and foremost - I knew the size I needed and MM was able to make it to fit like a glove. I have never gotten a fit this good EVER. The quality is amazing. This is the REAL DEAL!!! The steel is heavy duty, polished smooth and perfectly crafted. I personally got the security screw which eliminates all these different style locking mechanisms into something small and relatively easy to use. I even had them add an extra hole for a separate lock if my key holder desires. With this fit I can easily wear 24/7 and I can do all my normal activities. This Jailbird has a very high level of security so that there is no chance of getting out for me ( there is no other screw driver that will fit this without harming the screw) I also love the feel of the solid steel weight of the jailbird, enough to know it's there but never an issue or hurtful. Plasics are lighter but bulkier - this one is far less bulky and easier to wear. I am extremely happy and recommend to anyone. I wouldn't use any other company, MM service has been fantastic and wouldn't look elsewhere. The money is WORTH IT!!!

by desertsub on Mature Metal

I thought I would come back and do a followup review and found my original review from back in March 2014! Hard to believe I've been locked in my Jail Bird for over 4 years now! My wife only unlocks me when she wants to play with my penis and once a week to shave. Otherwise it has only come off for doctor visits and for flying. I am still just as happy with my Jail Bird as I was when we first got it and still believe it is the best chastity cage out there.

by Thom on Mature Metal

Wow, this device is so comfortable, fits perfect and looks really cool. I have been working out and other things I couldn’t dream of doing with my CB6000s. I would never NEED to take it off and can go as long as my wife decides to keep me locked in chastity. If you can afford, don’t spend his one more second in a plastic torture device.

by @steve15171 on Mature Metal

Am i wearing a chastity device, not really sure! That's how comfortable the MM Jailbird is. Order the sizing rings and let Mistress MM fit you for the cage you will finally be happy to wear.

by Tom on Mature Metal

I have been wearing the Jailbird for four days so far and it feels great and is very secure. I honestly think I can wear it nonstop for months. I have tried many different over the counter chastity devices and none fit as well for long-term use as this one. Incidentally, I've found that the Omtex Neo Athletic Cotton Gym Supporter available on Amazon provides perfect support for this device and others. I'm fairly active and walk to work 3 miles roundtrip every day. The device causes no problems in my daily walk or trips to the gym. I'm especially happy it is so concealable. I've worn it with jeans, business slacks and my gym sweatpants and it does not show at all. Since I'm in a long distance relationship, my girlfriend uses the Igloohome Smart Key Storage Lockbox to keep the key under her control, but yet available to me in case of an emergency or in the rare event she decides to let me out. When I first got the device my measurements were off, so I returned it for adjustment for the cage length and ring diameter. They made the adjustments and returned it to me in about a week. Thanks for the quick turn around. If you are looking for a comfortable chastity device that is 100% secure, comfortable for long-term wear and concealable, I highly recommend the Jailbird.

by Jailbird1967 on Mature Metal

I have tested over 40 different chastity cages. The Mature Metal Jailbird chastity cage is the best of them all. It looks like a juvel and it fits like a glove.I did the measurements many times and I also checked the measurements for the holytrainer chastity cage I remember was longer than I was need but it was to small. So when I set up this order I was sure to go down in the length and increase the width.Now I have one perfect chastity cage for permanent usage. My Master have control over the keys :)It's easy to keep it clean and shape.It's perfect for long distance locking.I have chosen padlock as locking options. I thought that was the best because you do not need to destroy the chastity cage if you need to emergence from it but don't have the keys.

by Anon on Mature Metal

It's been many years now since I first put on my 2 1/8 X 1 7/8 X 3 3/4 Jail Bird. The only problem I've had is winter shrinkage. I'll soon be ordering a 2 X 1 5/8 X 3 for those cold winter months when my first one is just a bit too loose.Other than My shrinkage, the Jail Bird has fit perfectly and comfortably for longer than I can remember. I'm not kidding. At my age anything past 4 or 5 years ago is the distant past.The only reason that I have hesitated to order the "winter size" cage is that I want the base rings to interchange and that necessitates sending back the first one and it's uncomfortable to go without.

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Additional information

Cage Inside Diameter

1", 1 1/8", 1 1/4", 1 3/8", 1 1/2", 1 5/8", 1 3/4", 1 7/8", 2 1/8", 2 1/4", 2 1/2", 2 5/8", 2 3/4", 2"

Base Ring Inside Diameter

1 1/4", 1 3/8", 1 1/2", 1 5/8", 1 3/4", 1 7/8", 2", 2 1/8", 2 1/4", 2 3/8", 2 1/2", 2 5/8", 2 3/4", 2 7/8", 3"


1 1/4", 1 1/2", 1 3/4", 2", 2 1/4", 2 1/2", 2 3/4", 3", 3 1/4", 3 1/2", 3 3/4", 4", 4 1/4", 4 1/2", 4 3/4", 5"


1/4", 3/8", 1/2"


Round, Oval