Tantalize up to 4 erogenous zones at once for stronger, more fulfilling orgasms. This toy is flexible to suit a wide range of body shapes and sizes. The rings allow you to have stronger, longer-lasting erections while the bullet vibe in the butt plug not only massages you internally with the vibrations but sends them through the toy to stimulate your testicles and shaft at the same time. The bullet can be removed and used elsewhere on the body to offer an even more stimulating experience, if so desired. A simple push button on the base allows you to choose between the 3 speeds and 4 varied vibrations. The RO-Zen is waterproof, so can be enjoyed in the hot tub, bath or shower.