Ofinity Plus - Dual Vibrating Ring - ClearThe Ofinity Plus Vibrating erection ring gives men an (almost) eternal erection! Isolation design constricts blood flow for concentrated enhancement that lasts and lasts and accomodates almost any size member. This stretchy cock ring has one purpose: to help keep his erections harder for longer while helping to prevent premature ejaculation. Simply stretch the top ring around the shaft and the bottom ring around the testicles and postion them against