Everybody wants it! The 16 inches Double D features two realistic cocks at each end in life like Ultraskyn to double your fun, joined at the center with a Vac-U-Lock Double Up plug from Doc Johnson’s patented Vac-U-Lock interchangeable sex system. Each removable attachment is molded from a real erect penis and compatible with any harness or accessory in the Vac-U-Lock collection. The Double Up plug can also be used with any of your other Vac-U-Lock attachments to create the double ender of your dreams. 16 inches. Color Vanilla Beige.