Adjust Ring from Marc Dorcel is an adjustable penis ring made entirely of high-quality, soft, pleasant-to-touch silicone. Thanks to the adjustable circumference, you can tighten or loosen it at any time, depending on your needs. Why is it worth using erection rings? First of all, its about enhancing the experience for both partners. Clamping the penis with a ring blocks the outflow of blood from the corpora cavernosa, resulting in a fuller and longer erection and intensification of the stimuli felt. This is an old, proven and completely safe way to prolong intercourse and enhance sexual sensations. Remember to only use water-based lubricants when using the Adjust Ring, as others may cause irreversible damage to the ring. The ring is made entirely of high-quality medical silicone. Does not contain phthalates. Adjustable diameter.