Aneros Helix Trident Prostate Massager. The Helix Trident is from our newly released Trident Series, based on the legendary Helix shape that was used for the Helix Classic and our best selling Helix Syn. It's a thing of beauty, with an aggressively angled head, new Trident W arms, and a contoured body that is great for beginners and advanced users. 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. 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. Product specifications: tip width 1.06 inches. Mid-ridge width 0.93 inch. Stem to perineum distance 1.75 inches. Insertable length 4 inches.