No recent reviews of the Master Series Captus cage so I thought I'd do one. Size : Cage: 4 inches in length, 1.4 inches inner diameter; Base ring: 1.75 inches inner diameter. I've had the Captus for about 3 weeks and I've been locked for about 80% of the time. The hinged ring makes it easy for my wife to unlock it. She can't put it on me (sad face) so I do that then she snaps the lock shut. It's been comfortable from Day 2 - after Day 1 I bent the tube up so it didn't crush my balls and I ground the sharp edges of the ring. I'm a grower and there's about 1 inch space when I'm flaccid but I really like the feeling of a half-erection not being able to go any bigger and the pressure of the cage. I've found sleeping with it on really easy - which is contrary to what I expected from the advice about painful erections in your sleep. I tried a 2.5inch cage briefly to see what no erections at all felt like and decided that isn't for me. I threw it away. Peeing can be done standing up as long as you line things up because the cage is open ended. Washing it with it on is also easy. Believe it or not, it was only £21 on Amazon thanks to their 'dynamic pricing' algorithm. Today it's £43, last week it was £65. All in all, it's ideal for me. No negative points.
Surgical silicone tube (7mm inner diameter) over the hinge tore/split after a couple of weeks. Couldn't source replacement so tried 9mm heatshrink tube, slid over the hinge, hairdryer, bosh.
Looking at the picture, it seems pretty small for 4" in length. Can you confirm on exact length? How comfortable is it under everyday clothes ? Thanks!