Aneros Trident Series Eupho Prostate StimulatorA slim body and special curves for precise control and movement for experienced solo users. For sexual intercourse, its smaller frame freely moves through the manft. s thrusting, for stronger and longer orgasms. Contoured body for lateral and rotational movement and perineum tab for external prostate stimulation. Kundalini tab provides pleasurable sensations up the back. Insertable length is 4 in. and tip width is 0. 75 in.