Jail Bird

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 over 2″ can have the cage made with three rings. 3″ cages can have a total of four rings.  Depending on the length of the cage, the anti pull out may be able to be added.  If you have any questions about these options, please feel free to email us.  Please know that a proper size lock should sit sideways.

Build time is 6-8 weeks from date of order.

1-2 week build time $250
2-3 week build time $125
USPS EXPRESS (within the US) $20.


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.
All parts are handmade and can be built to any size.
Light Weight 5 OZ. (For average size). Lock not included

Order Jail Bird Male Chastity Device Jail Bird @ $320.00


May 02, 2015 by Matthew

Are you sick of restless nights? Tired of cheap plastic cages breaking on you and making you uncomfortable? Fed up with having to remove your device every three days for cleaning? Get this device. Stop thinking about it. Stop wondering about it. Just do it! You'll be glad you did. This device is so comfortable I can barely feel it. This is VERY important. Without a comfortable device, you will not be able to focus on anything and it will impact your sleep. This device is hygienic and easy to clean. This is also VERY important. Can you really feel like your in chastity if you have to remove it every few days? Of course not! Can you really feel like you're in chastity if you're in a plastic device? Absolutely not! Look around online for blogs about the Jailbird. Figure out your size (smaller is always better IMHO) and get locked up! I agree with ALL of the posts on this review board. THANK YOU MATURE METAL!!!

best device I have ever had

Apr 05, 2015 by josh

I have recently bought the jailbird with an extra cage ring and I am completely satisfied I have owned a cb600 and a birdlocked both have fell drastically short on quality and comfort when it comes to long term wear thanks again mature metal

Incredibly comfortable

Mar 30, 2015 by DS

My Mistress made wear the Jailbird the minute it arrived and I have been wearing it ever since, albeit for more than a week. It is so comfortable you actually forget you are wearing it. The quality and workmanship is perfect, and truly well crafted.
Having experimented with several plastic CB devices, all of which I could not wear for longer than 2 days, plus struggling to keep my penis clean for Mistress, the Jailbird's open design makes staying clean easy. It is truly a practical, and permanent chastity device, in fact its so comfortable you will want to wear it...
Getting the sizing right is critical and its well worth getting the sizing rings first before you order, really helps, plus the team at MM is awesome and extremely helpful and experienced, in answering all your questions.
The entire experience, obtaining advice, ordering, and receiving this excellent product is top class. My Mistress and I cannot thank the team at MM enough for their excellent product and making long term or even permanent chastity a reality for us. 5 STAR Plus

If at first you don't succeed try again

Mar 29, 2015 by No more chubby for stubby

I bought a jailbird and wore it off and on for a while, then it was decided that it would be more permanent and that's when I noticed there was something that just didn't seem right. It seemed I could almost achieve a full erection as it would pull on my balls and pull away from my body, so after a couple of phone calls and numerous emails to mature metal, I found the base ring and the cage length needed to be made smaller. I sent in my device and got it back very quickly with the changes and wow what a difference it made. I just wanted to say their customer service is second to none and would recommend this company to anyone who is in to chastity, as with me they will do everything to give you the best product possible, thank again for everything any I am extremely happy


Dec 02, 2014 by Chuck

What can I say that hasn't already been said? The first one I had made, I was cocky and though I could go an inch shorter. Boy was I wrong! This device has no give and no movement at all, so too short was not good. Nice thing is that the resale value is rather high so I sold it for a very small loss and ordered another with more appropriate measurements. Unbelievable the difference it made. If you have questions they answer truly and give great advice. Ultimately it is up to you to take the advice or not. I learned to take the advice. When you get the right size this device does exactly what it's meant to do. I love mine and haven't been out of it since it arrived.

Best device i've ever worn, and best customer service ever

Oct 23, 2014 by Elle_minded

i received the new cage rings right on time, but wanted to wait a while to make sure my first impressions held up before writing to You.

i've been wearing the Jailbird continuously now for over a week, and William's advice, and the adjustments made, were perfect! i'm using the same size base ring as before, but the double ring is just exactly enough snugger, one finger instead of two under the ring, and absolutely no doubt, more secure now. And, miraculously, just as comfortable as before. Actually, even more comfortable, since the extra width of the base ring is not quite as binding when i get excited. i strongly recommend a double ring to anyone buying one of Your devices.

William was also right about not lengthening the tube... now that the ring and gap are well~fitted, the compression caused by the tube is far more arousing that previously.

So interesting that such a slight change makes such a big difference. But shows clearly the critical importance of getting the measurements exactly right.

The 1/8" smaller double ring i also ordered, is a bit too tight, i got it on (with difficulty) but could not get one finger under the ring. However, i suspect my sac will stretch some over time and i will be very glad i've got the smaller base ring then.

i'm totally thrilled, and so is my Owner. i feel i might wear this forever with pleasure.

Again, i can't thank You enough for Your wonderful customer service, and would be pleased if You wish to copy this into a testimonial or would like me to post one separately on Your webpage.

With deepest thanks and great respect, for Your craft and consideration,

Best device around

Oct 23, 2014 by Oskari

Been into chastity play for multiple years and have tried multpile devices (curve, cb6k, Holytrainer V2) and have to say Jailbird beats them all. It is very comfortable to wear (I sometimes forget I am even wearing it) and most of all it's very easy to maintain hygiene. You don't have to remove it for cleaning, which make it great for 24/7 use. Security screw makes it even more discreet under clothes. Haven't had any problems wearing it at work or gym.

Great craftsmanship and great customer service.

great product, great customer service

Oct 15, 2014 by chris

So my Dove and i originally tried a soft plastic chastity device for me, but quickly realized it was no good. After begging for a metal device, i did some research and found myself here at Mature Metal. W/we looked everything over and decided on the Jailbird. after (what i thought was careful measuring), W/we put in O/our order. When the Jailbird arrived, it was amazing, a beautiful piece of jewelry. When i first wore it, it was great, wasn't obvious under my pants, easy to clean myself in the shower and snug. Unfortunately, i chose the wrong gap size as I later learned. i was having pain and my Dove and I couldn't figure out why. After checking with MM, they had the answer right away and were great about helping me get the correct gap size. Thank you very much to everyone at MM.

Note: while i like the symbolic aspect of the lock, i found it would poke me every once in a while. if You are going for comfort, i would suggest the Security Screw for comfort and helping the chastity cage keep an even lower profile.

The best chastity device I have ever tried

Jun 19, 2014 by Caged Lion

I've been reviewing chastity devices for fifteen years. I have had a longstanding interest in being caged. Until I tried the Jail Bird, nothing was comfortable or absolutely wearable like this cage. I have had mine for five months now and have worn it 24/7. It is currently being adjusted. MM is wonderful about adjusting for a perfect fit. The cage was too long and it is being shortened.

Since my flaccid penis is quite short (1 1/2"), the Jail Bird is the best choice I think among the Mature Metal products. It securely holds me and effectively prevents erection or in-cage naughtiness. It is probably the only cage out there that works so well for the smaller penis.

It is easy to stay clean without removing the cage or going through any trouble. It is absolutely invisible under my clothes. My wife likes it because it is very easy to remove and put back on. We have the security screw option. I am very happy with it. When the screw is in, there is no play between the cage and base ring. A padlock allows a little movement. Without a lock, there is no rattling or other sound.

If you are serious about male chastity, MM is absolutely the best custom cage maker out there. The workmanship is excellent and delivery is always on time. Considering the quality and that this is a custom made product, the price is very fair.

Absolutely Fantasic!!!!

Apr 25, 2014 by Tom

My device arrived yesterday and I was locked up immediately. My wife and I have been playing with male chastity for about two years. We've been using a very popular plastic device. While it did the job, it was not comfortable for more than a few days. Security was also an issue as was durability. It did split a couple of times and had to be repaired with super glue. When we decided to go full time 24/7 lock-up we knew we needed something better.

After doing some research we settled upon the Jailbird. It was ordered in early March and just came. It actually arrived a week early so that was a plus. My wife loved the way it looked. She called it jewelry. After locking it on I realized it needed a slight adjustment to the gap. A quick email to MM and they said I could of course send it back for adjustment or could do it myself. I felt very comfortable doing it and did. It was locked back on and I must say it is extremely comfortable. I don't know I am wearing it about 75% of the time and I expect this to get even better.

If you are considering long term wear don't waste your money on cheap plastic devices or Chinese metal knock-offs. They won't fit right and you will not be happy. Spend a little more and get a custom fit MM device. You will not be sorry.

Thank you Mature Metal. You have made this couple very, very, happy.

Mature Metal , USA 4.9 5.0 43 43 Are you sick of restless nights? Tired of cheap plastic cages breaking on you and making you uncomfortable? Fed up with having to remove your device every three days for cleaning?

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