OTC ring kit is perfect for those with a mild case of impotence. These rings are so affordable many customers purchase them as replacement rings for competitors systems. Available without a prescription. For patients who can achieve but not maintain an erection, or who suffer from premature ejaculation. Also recommended by physicians in conjunction with Viagra™ and Injection Therapy. Reusable, easy to use. Applies in seconds. Lifetime warranty. NON-Returnable due to health regulations.