Aneros Eupho Trident Prostate Massager has a slim body and special curves for precise control and movement for experienced solo users. For sexual intercourse, its smaller frame freely moves through the man's thrusting, for stronger and longer orgasms. Hands free. FDA approved materials. Products features: angled head massages the prostate. New Trident arms for better movement. Contoured MAMA body for lateral and rotational movement. Perineum tab for external prostate stimulation. Kundalini tab for pleasurable sensations up the back. A new dimension in prostate stimulation. The Trident Series introduces Multi-Axial Motion Architecture, or MAMA, our revolutionary feature which allows the Trident to move laterally as well as move up, down and in, out. This extra dimension of movement adds an extra dimension of pleasure, making it easier for a man to reach the Super-O. We think you will be blown away by it. The Aneros way. The Aneros Stimulator allows men to self administer a prostate massage comfortably and discreetly. Simply through anal kegel exercises, the Aneros's design utilizes a self pivoting mechanism that stimulates the prostate internally and external via the perineum. This is done completely hands free, allowing a user freedom to explore the sensations in any number of positions.