Those ones are good. I normally use one that is a strip and has a bead for adjusting the tightness. It is simple, easy, and I have only had one problem with it: sometimes the damned bead will fall off after I am done using it or while I am cleaning it, and the bead is a pain in the ass to put back on. Beside the bead coming off, which has only happened three times total, it works great. I also normally use the cock ring for about 30 minutes. I know that is pushing the limit for how long you should wear it but I like having sex for long periods of time, preferably much longer than 30 minutes.
I use a cock ring and it makes my old fella look realy angry i love it but it dont keep me hard after i blow thats it good night nurse . i think it depends on your actual normal sexual performance if you cum quickly your always goinging to cum quickly no matter what you have wrapped around your cock .
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