Rings
Unknown to a large part of the male gender, penis rings (or cock rings) are one of the simplest and most surprising erotic gadgets due to the new sensations they provide. These rings were invented in the 19th century as an aid for men with erection problems or premature ejaculation. Their function is to act as a valve that prevents the blood that enters the penis from leaving, resulting in a greater and longer-lasting erection, even after ejaculation. The porn industry quickly discovered and used them to present massive erections to the general public. Nowadays, they can be easily found in any sex shop.
There are different types of rings, but broadly speaking, we find two main groups: compressors and stimulators. The former serve to retain blood in the penis and consist of one or more rings that must be fixed at the base of the penis or around the testicles before erection. Stimulator rings do not aim so much at blood retention or ejaculation delay as at increasing the pleasure the woman experiences during intercourse, which is achieved by adding several rings along the length of the penis. In a way, this second group pursues a similar goal to the ribbing found on some condoms.
Lastly, we must not ignore the precautions that should be taken when using rings. Firstly, their use should never be prolonged for more than 20 or 30 minutes, as they impede blood flow, especially if tightened more than necessary, which can end up causing cell death and even thrombosis. Additionally, due to their nature as erotic toys, care and hygiene measures must be maximized in their conservation to prevent them from becoming sources of infection.