Slip one of these penis ties on and enjoy the ride of your life. Made of high-quality and hygienically-superior silicone, these rings are super stretchy and will adjust to accommodate most sizes. This two ring set features one tie for just the penis and another for the penis and testicles. The clear ball accents are used to adjust the sizes of these completely sturdy and flexible ties offering you long-lasting erections and helping to prolong ejaculation. phthalate-free. Available in Purple and Black.