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I don't think I've ever met an enema nozzle I haven't liked, but or butt, I prefer some nozzles over others, and some nozzles I really love.
The silver bullet is always a favorite as well as any nozzle that has a large enough "bulge" to stay in place without any effort to hold it in.
Having just said, I like some girth on a nozzle, I am also quite fond of a nine-inch nozzle that has ribs. Happens to be bright yellow because I ordered it from siliconenozzles.com and I could pick from about 15 colors so I went with yellow for fun. It's actually a rather narrow nozzle, but the ribs make up for the lack of girth. Feels great to have the ribs slide in and out.
https://siliconenozzles.com/collections/specialty-enema-nozzles-3/products/mbs9
SiliconeNozzles.com also provided several more nozzles that I like. The Model C Large Tip Flexible Silicone Nozzle is a great retention nozzle and I got it in blood red colorj and it packs a bit of girth. The Model B is also a fun one in any color, but I got it in blue.
https://siliconenozzles.com/collections/specialty-enema-nozzles-3/products/c
I also like the MAXIBALL30 Silicone Retention Ball Enema Colon Nozzle. I have a few anal ball toys that feel great going in and out. The Maxiball 30 combines the feeling of the balls going in and out at the same time you are getting an enema. What's not to love about combining the two great feelings?
https://siliconenozzles.com/products/maxiball30?pr_prod_strat=e5_desc&pr_rec_id=4cb66a289&pr_rec_pid=8436198113578&pr_ref_pid=8436198179114&pr_seq=uniform
And then we have the colon tubes. These are not exactly nozzles, but they are related. Frustrating sometimes when the thing folds over on itself in the rectum instead of sliding up and into the descending colon. I've found it helpful to first widen the way with the Model C Large Tip Flexible Silicone Nozzle that I got quite rigid so it will NOT fold over on itself. I first plow the way with the Model C while I'm in the Sims position and then without rising up or rolling over or doing anything to tighten the pelvic region, I remove the big nozzle and slip in the colon tube and it has a much easier time finding its way into my innards.
https://siliconenozzles.com/pages/colon-tubes
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