Everybody wants it! The 16 Inch Double D features two realistic cocks at each end in lifelike ULTRASKYN to double your fun, joined at the center with a Vac-U-Lock DoubleUp plug from Doc Johnsonb 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 DoubleUp plug can also be used with any of your other Vac-U-Lock attachments to create the double-ender of your dreams.