Dont forget to use your favorite water-based lube for a night of extra moisture and care for the Beast Ring with a good toy cleaner, dry it thoroughly and store it in a safe place. Remember not to wear the rings for an extended period of time; if you feel uncomfortable, remove the ring. Features Super flexible penis ring. Body-safe materials. Polygonal shape. Prolongs erection and improves relationships. are the measures Inside: 2.2 cm (at rest) Outside: 4.5 cm (at rest)