The AP-Erectionring reduces but does not stop blood flow of venous blood from the penis to the body. The quality of the erection is an augmentation of the circumference and length and a prolongation of the erection. The blood needed for the erection is maintained better and longer inside the penis (cavernous tissue). Use AP-Erection is to place at the base of the penis and behind the scrotum (testicles) before any arousal is started. Normal sexual function of male erection are the result of increased blood flow into the penis and cavernous tissue. Men, elder than 50 years often have conversion of the erectile tissue into non-elastic connective tissue, or this function is reduce. Indication Erectile dysfunction (male sexual disorder, impotence), Erectile dysfunction is the diagnoses if a man cannot get or cannot keep the erection. Light erectile dysfunction is commonly the capability to get an erection but to be unable to maintain it or to maintain it for a complete sexual activity.