From the Master Series Leviathan Giant Inflatable Dildo with Internal Core. If grandiose and intimidating is your idea of a good time, look no further. Both are exemplified here with the Leviathan Giant Inflatable Dildo. Your plaything will be ultimately challenged with the length and girth as it stands, let alone once it is inflated. Semi realistic bumps and ridges are added for stimulation. Lube will be necessary, as will patience. Once inserted, Leviathan can be inflated to a fuller size by pumping the attached bulb. To deflate, simply turn the knob at the base of the pump. Measurements uninflated: 13.5 inches in total length, 2.86 inches in diameter. Inflated 14.5 inches in length, 3.58 inches in diameter. Materials Silicone rubber and metal. Color Black.