The Screaming O Set of 3 Clear Cock Rings help keep him harder longer with stronger, fuller and firmer erections, and now fans can enjoy three unique super-stretchy sizes to find their perfect fit! Simply stretch the ring around the penis and testicles and wear at the base of the body to allow the snug cock ring to do its job. The tight fit slows blood flow to the penis, allowing erections to last longer while helping prevent premature ejaculation - and the sensation can also help intensity orgasms tenfold! Choose from Stronger, Firmer or Harder tensions and see what works best for you!