Aneros Helix Syn, Silicone Synergy. Experience the synthesis achieved with our most popular Helix model and velvet touch silicone. The original Helix design has been skillfully refined for an even more comfortable fit, and with it's solid inner frame, still maintains the rigidity necessary for the mind-blowing prostate experiences we are famous for. The final touch is a coating of the finest silicone available, for extreme comfort and maximum pleasure. The Synergy possible with Helix Syn and the Male G-spot is an unmatched combination you have to experience for yourself. Hands free pleasure. Perfect for advanced and beginner users. Velvet touch silicone for extreme comfort. Made with FDA approved materials. Anatomically designed for a perfect fit. Based on proved Helix design, yet refined. Tip Width: 1 1/16 inches. Mid-Ridge Width: 15/16 inches. Stem to Perineum Distance: 1 3/4 inches. Insertable Length: 4 inches.