Cloud 9 Novelties Super Stretch Donut Stay Hard Ring Combo Pack includes a trio of super soft skin safe rings. These ring can help you stay harder longer and prolong ejaculation. Cloud 9 cock rings are made of phthalate free, non-toxic thermoplastic rubber TPR. The rings are comfortable and made specifically for your safety and hygiene during your intimate play. Cloud 9 cock rings can be used individually or together. Cock rings give you a longer lasting erection by trapping the blood supply in the blood supply in the penis and intensifying your orgasm! Cock rings are ideal for men suffering from erectile dysfunction ED and premature ejaculation. Always use a water based personal lubricant with this product for maximum pleasure. Do not wear a cock ring for more than 30 minutes at a time.