Well, some of you may have followed my frustrating attempts at chastity. I've tried a number of tube based techniques, all failed with various forms of bruising / chafing / horror. I've tried a birdlocked, which failed for a number of reasons. I'm not keen to waste money searching for a device which doesn't perform or is impractical. NO trapped ball device will work for me. If I can get it on, I can get out. My genitals are simply too flexible, I'm a contortionist in that area. Short of a piercing and Lori / MM style device or full belt, I'm out of luck. Even these devices fail miserably on the practical aspects of wearing. So going back over my situation, I thought I should state my requirements: Security: I don't need a device that locks. I don't need a device that is secure against removal, just one that is too difficult to bother to remove and re-install. It needs to be: not-removable in the heat of the moment, which is the only time I'm sufficiently weak of character to pursue an orgasm. Comfort / Safety: Tube based devices of all sorts with flat ends cut into my skin. The end must be rounded and must not impinge circulation. It MUST be comfortable to wear at night, and not chafe at all. It MUST be possible to wear long-term. Orgasm / Arousal: I don't need to be unable to orgasm in the device, I need to not be able to have a pleasant experience doing that, yet be able to still have a good amount (near maximum) of arousal. This means fine-tuning and adjustment are probably required. Cost: I'm not willing to spend $100-300 per device to find they don't work adequately for me, my spouse and our very active lifestyle. This needs to be maintainable either for cheap, or a one-time setup cost. Visibility: For me, this is the number one concern. I can't use a device that is visible under tight clothing by this I mean, bike shorts, a bathing suit, or very close athletic gear, unless I have keyholder cooperation and organized removal 4+ times a week - I think that's too much of a burden and demand to make. This basically rules out all commercial products I have found on the market. However, having stated these requirements, I think I found a new solution that actually meets those criteria: Nitrile rubber O-rings. These come in a huge variety of sizes and thicknesses. They are common and available at any hardware store. Most strikingly, the sizes are measured in 1/16" increments. I chose the thickest available - a donut style O-ring, at 1/8" thick. The rounded edge makes it easy to roll on and off the penis and because it is round, it doesn't cut into the skin. Jackpot! One ring isn't enough to deter erection, merely constrict flow in one part of the penis. Adding multiple rings, however, is effective - very much so. After experimenting with various sizes, I found that 3 x 1" I.D. + 1 x 1-1/16" I.D. placed near the tip of the penis is effective at preventing orgasm - or at least, the orgasm would be so painful as to be useless (tried it and had to abort the orgasm after one contraction - somewhat advanced technique - manual pressure on the perineum + control of pelvic floor muscle - not for kids). Right now, the 1" near the corona is a bit tight, as I'm sore there from testing another method (a 1" I.D. vinyl tube which hurt like hell getting into), and the 1" further back causes a bit of a strangled priapism. Slept overnight with this combo under the corona and found it comfortable. Morning erection was rather painful and would not stop hurting probably because of pre-existing soreness. However, I find it works. I will continue to increase the number of rings - likely by a substantial number, and slightly increase the diameter as I go towards the base of the penis. This distributes the compression load and gives a nice "hugging" sensation without impinging blood flow. It also means it takes more time to take off and put back on - a disincentive to removal. Obviously, it isn't locked in place. I did try adding a scrotum ring and locking the penis rings to the scrotum ring. It was not comfortable because the lock pinched and scraped. I could cover the lock in rubberized coating, but it really doesn't achieve much of anything - I can still escape from the very small 1-3/8" inner diameter scrotum ring despite the lock. Putting the penis through this ring doesn't help matters, in fact it creates a major blood supply issue when erect and adds no security when soft, no matter how this will be locked. Besides, I can orgasm without an up-pointing erection, so there is little point other than cosmetic value and the handing over of a key - and the comfort sacrifice is not worth the cosmetic value. However, at this point I must observe: It effectively stops orgasm. It allows a very high degree of arousal, just no spasm. It is 100% invisible under anything. It is comfortable. It is hygienic. It is cheap. It allows 100% mobility and athletic activity. It is difficult enough to remove and re-install to make it a major production. It is impossible to remove when aroused and semi-erect. An unexpected bonus: it is possible to get hard enough to allow for penetration and confining enough to allow orgasm to be avoided A doubly unexpected bonus: the multiple rings underneath a condom would effectively be a very stimulating set of bumps - like a ribbed condom, only it will stimulate both of us. It's also airport safe, which wasn't even a design goal, but is a desirable feature. I could see myself wearing this for a very long time without any need to remove it, which is exactly as desired. That's enough incentive for me to keep it on without any lock at all. The fact that it will take 5+ minutes and a complete lack of arousal to successfully get off all the rings means it won't be coming off before lovemaking - even more so if my predictions of extra stimulation for her are true. So I've basically created a way to stave off orgasm indefinitely, in a safe and discrete way which never needs to be removed, and nobody but my partner ever needs to know about. Which is exactly what I wanted. At this point I need to heal up a bit, but the chafing was not so bad, so it should only be a couple of days. In the mean time, I plan to experiment with rings further towards the base to see what size will be required and work on the final combination. I'm guessing it will be something like 2 x 1" 2 x 1-1/16" 3 x 1-1/8" 4 x 1-3/16" (this is the inner diameter of the birdlocked mini, btw) I may need to adjust the number of smaller rings to find the proper balance between orgasm potential and morning comfort (or maybe just take off the smaller rings then), but we'll see. Very exciting to have found a method of chastity that may actually work for me. Very curious to find out what sex will feel like with this. If it works well, maybe it will never come off, but one thing is sure, once this is introduced to the wife, it's there for 6-months at least. I haven't done that much of a time commitment for a while, so mentally preparing for that now..