Go from dud to stud in four simple steps, just open ring, insert penis, adjust, and enjoy. Those new to penis rings will appreciate the fumble-proof ease of use, while the old hands will love the fact that you can tighten this fully adjustable baby all the way up or leave it loose. And the size adjuster bead is more than just decorative, when placed correctly it makes a great clitoral stimulator. Adjustable to 4 inches in diameter. Made of neoprene.Assorted colors. Color will be shipped depending on availability.A penis ring is a device, made with silicone, rubber, metal, etc. and is worn around the base of the penis during intercourse or masturbation. Basically penis rings work by limiting the amount of blood flow to and from the penis in order to maintain a full and firm erection. It allows a man to retain his full erection during intercourse and therefore increasing pleasure for both his partner and himself. Rings can also make orgasms more forceful and intense. These items are intended solely for sexual enhancement and not designed to correct erection problems. Use of rings should be restricted to no more than 30 minutes at a time. Allow 60 minutes between uses. Do not fall asleep wearing the ring, prolonged use of the ring (without removal) may cause permanent injury to the penis.