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″ in length can have the cage made with three rings.  3″ in length or longer can have a total of four rings.  Depending on the length of the cage, the punishment pin option 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.
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.



Order Jail Bird Male Chastity Device Jail Bird @ $340.00
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Average rating:  
 66 reviews
by Mark on Mature Metal
Just like we'd hoped

A very positive experience! A+/Thumbs-up!For a number of years I've been restricted (occasionally) with various CB-x devices. But a year ago we decided to get serious about it. Though the CB products are great for what they are, _plastic_ didn't really make it seem 'enforced.'We decided I should use the sizing rings to be sure of the fit. Glad we did. We measured several times over a few days, and we didn't let my ego get in the way.We had questions, of course: they were answered very quickly (thanks Mistress MM). Great attention to customers.We decided I should have a Jail Bird cage, both oval and round base rings, a locking Cock-Ring, security screws, and a lock.The order was placed and we received the items as ordered, and actually a few days earlier than expected. Good job!The fit and finish are superb; construction is excellent.We ordered a round base ring because I was concerned that the oval ring, with its reduced vertical dimension, might put too much pressure against the urethra. I needn't have worried: the oval _did_ take a few days to get comfortable with, and it _does_ feel a little tighter. It's fine.I use the security screw most of the time: it cleans up the lines (no weird bulges under slacks) and it is secure enough: I don't need to be forced to abide: chastity has been agreed to; the device is a reminder, a token, a visual affirmation of that agreement (and we have a lock just in case my acceptance needs to be enforced).We can mix and match the different base rings with the cage or cock-ring as desired. And the two security screws are keyed alike to both keys...We're set!She decided I would start off with the round ring and security screw so I could get used to the weight - it's not heavy, but it is different from a CB-x devices... The weight didn't bother me at all. In fact, solid steel base ring of the MM device is less bulky than the CB base ring, and so is actually more comfortable.I think the main difference for me was the psychological effect of being in a steel cage as opposed to plastic. Maybe like the difference between being in a holding/observation room versus a jail cell with metal bars. You're in a cage and that's that.After a week we switched out the screw for the padlock (for a few days). All was well.Then, after another week she decided I should try the oval base ring. As I said earlier, it took a couple of days to get used to the pressure on the urethra, but I got used to it quickly and now it's fine. In fact, with the oval ring, the gap is more consistent and so reduces the scrotal bunching and so there is less irritation.Lastly, for a comparison I was locked back into a CB-6000 just to see which I preferred.... the MM Jail Bird is now the device I prefer.I'm glad we finally got a custom fitted device.

by dvntb on Mature Metal
Finally fitted

After emailing MM to ask for fitting advice, I ordered a jailbird right at New Year's. I asked if it would be possible to get it by Valentine's Day. Score two for MM! Their advice was perfect and they got the device to me ON V-Day! I am thrilled about how well it fits, and it looks fantastic! The craftsmanship and quality are amazing.Unfortunately, I messed up on my choice for the base ring. I ordered the right size, but I opted for the oval ring. I didn't consider how the cage would position my boys against the base ring. Uncomfortable for long-term wear. Individually, each piece fits very nicely. Together, they just weren't comfortable. So, I emailed MM again to ask what to do.MM came through again! I was so excited about the new cage that I wanted to get a double locking cock ring as a complimentary piece to the jailbird. I ended up ordering two double base rings and an additional single base ring. I wanted to have a single and a double base ring, and I wanted to get two sizes of each. According to MM, "No problem." I sent back the ill-fitting oval ring and MM made it round for me. They made the other three base rings, the locking cock ring, and made everything interchangeable! On top of all that, I received everything back in less than a week!I just can't say enough positive things about MM. It is so refreshing to work with professionals! They answered all of my stupid questions, suggested options I hadn't considered, and explained everything with a level of patience and understanding you just don't see these days. On top of the fantastic service, the quality of construction is impeccable.Everything was delivered back to me on March 3rd. I've been wearing some combination of base ring, jailbird cage, or locking c-ring continuously since then. Like any kid with a new toy, I wanted to play with them all. Everything fits perfectly! I could not be more satisfied.If you have been considering placing an order, stop putting it off. Yes, it may cost a little more, but it is worth every penny to have a custom fit cage with this level of quality. Think about it. You are looking at a device you will be wearing all day, every day, 24-7. Don't you think it's worth it to go with quality and comfort? I'm certainly glad I did.

by Brad Johnson on Mature Metal

Received my new jail bird a few days ago and absolutely love it! I wore a cb6000s for a few years and can't ever imagine going back to it. The comfort level of my jail bird is top notch, and the fact that I don't have to remove it for cleaning pleases my owner a great deal! My cb was 2.5 inches and my jail bird is 2, which helped to accommodate my size reduction. I am locked 24/7 and I highly recommend the jail bird to anybody else in the same situation!

by lilandlocked on Mature Metal
Just what we were looking for

A++++ Recieved the Jailbird on 6/29 and been wearing it since. Been released 3 times for over night/play. Waited until now to give a review because I wanted to test it out. Great craftsmanship! It exceeds all my expectations. Above all its very comfortable to wear long term and easy to clean without removal for a true 24/7 fit. I wish I would of 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 days even to bed until i had it narrowed down. Thanks again!

by DL on Mature Metal

Been wearing your device for a few months now and it's very comfortable and easy to stay clean with the open design of the jailbird.My wife can now get the longterm lock up she wants. Thanks again

by s on Mature Metal
Great Fit

We received my new Jail Bird last week. The fix is excellent, I am very glad I followed the advice given by MM on sizing. The workmanship is wonder and it is very comfortable. This is a far cry from the old CB3000 I have been in for a number of years now. It is so nice not to have the clanking of the padlock when I walk and no bulge in my bluejeans any more.

by Brad on Mature Metal
Excellent Craftsmanship and Service

I have had my Jailbird for a few weeks now, and it feels like home. I had previously worn a Holy Trainer Version 2, which was a great product to test this lifestyle choice. The Jailbird is in a league the HT2 will never know.The Mature Metal team's advice during the sizing process was spot-on. I was somewhat fearful of the device being sized too small, but it ended up a perfect fit. I now know the HT2 had way too much space to move.I realize the chastity device's effectiveness lies between our ears in reality, but the Jailbird makes me feel securely locked away, and my wife loves the look much more than the plastic HT2. It was worth every penny.Thank you Mature Metal!

by Dan on Mature Metal
The best

I have had mine on since December 22, 2015 without removing it once. I had been promised to only have to wear it for a month. Now I do not know when I will be released. My wife has decided to keep me in it. It is comfortable but frustrating. It is much better than my previous $700 cage that required a piercing.. If you want the best, this is it. Be careful that chastity is what you really want because this cage is fool proof.

by Andrew on Mature Metal
Amazing product

This is a long overdue review. I bought the cage last January and have been wearing it ever since. I've tried the CB6ks, Holy Trainer v2, and a bunch of other cheap Chinese devices. None of them can compare to this device. It was uncomfortable at first because the cage was a little too long. I had it shortened and now it fits like a glove. Small enough to hold it but strong enough to prevent any sort of erection. The cage is very light too. If you're serious about chastity, measure carefully and get this cage, you won't be disappointed.

by Ian on Mature Metal
Making me smaller

Amazing product. Have always had a small penis when not erect, so am wearing your smallest length cage. However I am a a grower and wearing the cage has reduced my erection from almost 7 inches to 3 inches. Best thing of all is that my wife prefers my cock being smaller. She has jealousy issues likes the fact that I am unlikely to show a tiny penis to a new partner.

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