Look the one I use is perfect for all uses!
Unlike cockrings that you can get stuck and no way of getting it out... I mean it is scary.
With the horseshoe that I use it is simple to put it on and simple to take it off no worries that its going to get stuck since it has a clip.
You get harder! stronger erection, therefore stronger ejaculation. It also presses the dorsal veins as to give more pleasure, I found it interesting since a lot of guys do this but pay no attention, but the feeling is great! And while sex you feel your balls boucing..
happy about that too since I dont feel my balls hitting the pussy otherwise.
-Andy