The MGX is a medically-researched and designed device that works in harmony with your body's own movements. It stimulates both the prostate and the perineum in a rhythmic motion that builds up to unprecedented male orgasms. The MGX is easy to use and is fulfilling for both the beginner and the expert, with progressively rewarding exercises and experiences. The MGX is well balanced with a ribbed stem for stimulation and stability. The perineum tab provides an external perineum massage.The Aneros Trident series features Multi-Axial Motion Architecture which allows greater range of movement of the head, creating a larger variety of sensations for the quickest path to the orgasmic bliss yet.