Aneros MGX Syn Trident Black prostate massager. When it was first launched, the MGX introduced the world to the phenomenon of male G-Spot orgasms. Widely praised for its balance of responsiveness, moderately focused prostate stimulation and enhanced anal sensations, for over 17 years, the MGX has been one of our most popular products. Today we proudly present the MGX Syn Trident, the synthesis of the MGX prostate massager, the newest Trident series innovations and the comfort of our most luxuriant velvet touch silicone yet. Features: ribbed stem for more defined anal stimulation. Modified arms and tabs for superior external stimulation. Made with FDA approved. Phthalate free materials silicone. Dimensions tip width: .78 inch. Mid ridge width 1 inch. Stem to perineum distance 1.6 inches. Insertion length 3.5 inches.