The Nexus Titus was developed with male prostate stimulation in mind. The prostate is known as the male g-spot and when stimulated produces increased erection, orgasm, and ejaculation. The design of the Titus maximizes prostate stimulation and can be used during intercourse, foreplay, or masturbation. The Nexus Titus measures 4 " long and is 4 1/4" wide at the best. The shaft measures 1" wide at the widest point.