I have to report on one particular SN plug that I haven't seen raved about much yet, but it certainly deserves it.
Model number TRIPBALL55. It's in the "Retention Nozzles / Plugs" section of the site, with it's full name being the Triple Ball Style Retention Enema Nozzle. I have a picture of it in our album here: https://en.zity.biz/gallery/image/253581
Mine came in 00-50 Extra Soft silicone with a 5/16" bore and peach flesh coloring (with a pic of it in our gallery) True to its name, three ball/ribs adorn it down to a cozy retention valley and wide flange. It's a 'front-heavy" design, but I think that is what makes it such an effective enema plug.
Due to its bulbous tip, it's a bit difficult to insert without some prior warming up. Once it's in, however, it feels comfortable, delightfully filling, and feels fairly deep in. It takes basically no effort to hold in too.
I was surprised to find that, once the flow started, you hardly felt the solution going in. It was almost like using a colon tube despite it only being 5.5" long.
I took 2 oz. of castor oil in the morning to clean me out, and after initial expulsion 2 hrs later I managed to take all 4 qts. of hot water in my bag. I doubted I could take it all with the castor oil cramping still present, but the nozzle made it a breeze.
I've gotten a few plug-style nozzles in my enema set now, but I think this is the most effective one we've ever used for retention and taking large enemas without cramping interruptions. I highly recommend this one for folks who want an excellent retention nozzle.
There are two notes to make about my ordering experience: 1) it was fast, with me ordering the nozzle on early June 12th and getting it in my mailbox on June 19th. That's faster than some RTS orders we placed, so exceptional speed there. But 2) as seen in the album picture, there were distinct seams on the nozzle for some reason. It's far from unusable, but it's a minor quality ding that I wouldn't expect from SN. I suspect it's due to this nozzle's particular mold being rougher, but it's not a deal breaker for me and I didn't notice it during use. It's also somewhat cheaper compared to other nozzles, so it'd make sense.