How do I get penis rings to work? I have difficulty in maintaining erection during penetration. I have good erection during foreplay. However I lose erection the moment I hit the vagina. So I thought of using a penis ring. However it isn't helping retaining my erection in any way. Erection simply goes away the same way as it used to. What am I missing? Should it be worn too tight so as to work? I got an adjustable silicone one in ebay. Can someone using penis rings for maintaining erection help me out?