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- Posting sinceAug 2026
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I interpret Tom’s words literally, and this post is aimed at the “gear heads” who frequent the board. You know who you are… A collection of chastity devices bought over the past three months marks our path into chastity. I understand that this isn’t unusual for us. One has found a new home, one is rusting away in a landfill somewhere, one broke, three are sitting in a dresser drawer, but only two of them are actually wearable. I like the Holy Trainer, although cleaning it can be tricky; you have to avoid putting pressure on the section where the lock passes through when the tube is warm, such as after a hot shower, or it might crack. I wrote about the Bon4m large version some time ago but couldn’t wear it comfortably. It would hit my chair at one end and press into my abdomen at the other, twisting awkwardly in my jeans; the longest I could manage was a day, maybe two tops, even though I had smoothed the interior surface. Tweaking the shape of the larger ring didn’t really help either. So I gave up on it. I believe that I may have finally found a cage that truly works for me, although not in its stock configuration. It has been on my body for over a week now, including a continuous 4-day stretch where I never removed it at all. There is no pain, sores, or skin damage involved. It feels much more comfortable than any other metal device I have tried before. The HT remains the most comfortable and “transparent” in that sense—you barely notice it most of the time. However, having to remove it every morning for cleaning has been a hurdle for me. I’ve always felt drawn to a cage design like the Bon4m. Even though it is heavy, it looks cool, feels solid, and I appreciate being able to wear and clean it without needing to take it off constantly. The short story is that I managed to acquire just the short cage body without the rings (which I already have) from a distributor. I suspected that the shorter length would be the key factor, and indeed it was. Even though my flaccid measurement is around 3 inches, the 2 1/2-inch internal length fits perfectly. When engorged, it restricts how erect I can become, preventing me from swelling out of the holes like I did with the large version. While flaccid, I don’t always reach all the way to the tip, but get close most of the time. It sits well in my pants, doesn’t shift around much, and isn’t at all noticeable. However, I still maintain that it benefits from some modification before you want to wear it regularly. The interior of the cage lacks the smooth polish found on the exterior. Although the manufacturer includes sandpaper, which should be used, I employed a rubber polishing wheel on an internal Dremel-like tool to refine and smooth the inside surface. It isn’t mirror-smooth yet, but it is better. Additionally, I took 400 then 1500 grit wet/dry sandpaper strips to polish the interior of the bars by looping them through the holes and sanding down the ridges on all of them. This made quite a difference. The other issue lies with the rings themselves. The sizes are correct, but the rings are square, not round. I always experienced a “pinch” on my sac, even with this new cage, and it wasn’t caused by the hinge mechanism. I tried rounding and smoothing the inside of the ring slightly, but that didn’t solve it. Eventually, I realized that the problem was actually on the outside edge of the ring. The square corners were digging into the skin, preventing it from sliding smoothly even with oil applied. So I beveled the outside edge of the ring, then rounded and polished it using rubber abrasive wheels before buffing it out. What a difference. No more pinch. The modified ring The modified ring b4mnring.jpg (126.09 KiB) Viewed 7203 times You can see the rings as they arrive in the review here - the archived discussion But I wasn’t entirely satisfied yet. I had a small device with a solid 45mm ring that worked well; even if the cage itself had issues, the ring always felt comfortable. I ended up with an extra identical ring, so I decided to modify it to fit the Bon4m. I turned down the locking pin so it would seat into the Bon4 frame and drilled holes in the ring to accept the Bon4 guide pins. It took bending the ring itself a couple of times to get the gap right, but now it works. Comfortable, and I believe suitable for long-term wear. To tell the truth, I’m excited to have a metal device that I can just leave on continuously without removing unless my wife demands it off. And it looks cool. I find myself checking it in the mirror when I’m in the bathroom…:oops: Here is the completed device with the modified ring. It’s too bad Bon4 doesn’t manufacture them this way from the start. The final configuration of the new Bon4m with a solid ring. *The final configuration of the new Bon4m with a solid rin
g.* B4mn.JPG (123.07 KiB) Viewed 7203 times