Mini Double Dong. The Double Mini is the baby of the double ender family. It has a tapered fat to skinny penis head shaft, with veined detailing. It is soft, clear body returns to shape after every bend. A good place to start, if you are new to double enders, this toy is big enough to share, or small enough to keep to yourself. 11.75 inches long with 2.75 girth and 4.25 inches girth.