I bought this on the recommendation of Mistress K after I had written to her about how small I'd become following an operation. This meets my needs exactly. It arrived promptly, discreetly packaged and in perfect working order. Thank you for all your help.

Very small but extremely comfortable cage. For me, personally, I usually wear a 45mm ring, however, I ordered it a second time with a 50mm ring. I feel like the tiny cages just work better with a little bit more room. That's just my observation. If you're not a 100% sure, go for the all rings option and give yourself a choice, especially if you're sure you'll be caught in it for a long time.
Would totally recommend this cage, it's really awesome, no sharp edges, love the screw lock.
Wearing it with a strap to keep it in place perfectly and I'm just happy in it. Goddess loves, too.

Having stepped down in size using a number of the HoD devices, I finally find myself in this one. The device is a perfect fit, it's the first 'open bar' one which doesn't allow my foreskin to escape. Together with a steel urethral tube (acquired separately) this device is almost perfect and secure for me. My attempted erections are sufficiently contained without any slippage thanks to the 40mm ring, although I know about them!
However, for me, it felt like a step backwards going from a key to a screw, therefore if you could sell the same cage but with a key lock arrangement then I'll be first in line to purchase.
Thankyou HoD for a fantastic device.

This was my first try with a metal cage and it couldn't have gone better, it fits well and comfortably and unlike my other cages it isn't a huge hassle to take on and off because of the screw lock allowing careful adjustment to what feels comfortable.

I thought it might be a bit small but the body adapts. I have been locked away for several days 24/7an it is surprisingly comfortable. When released there was still little desire to perform, hence a good retraining device.

Only down side is the locking method. Whilst I am too respectful of my Mistress to investigate I suspect the screw lock is a standard type of "key" that can be bought at any DIY.

Service and delivery excellent.

If you want to be fully controlled, buy one