Precision Pump Erection Enhancer Silicone Cock Ring

If you have the misfortune of buying this poorly designed sleeve you are in for an ego boost. You will think your Johnson must have enormous proportions since the opening of this must certainly have been designed for the most diminutive of organs.
If you can even get it in which is utterly unlikely you are in for the most abrasive stroking session of your life even when totally saturated with lube.

Update. Interesting sensations, but you really need to put it in soft, and let things go their way.