The Master D, a thick lifelike cock with balls, is handcrafted to satisfy in both material options. Dual density ULTRASKYN warms to the touch and is designed with a soft exterior and firm core to emulate the feel of a real penis, while the FIRMSKYN option offers a firmer feel in a classic pleasure product material. Dual Density Design Feels Real Soft, Plush Exterior and Firm Inner Core Suction Cup Base for Added Stability O-Ring Harness Compatible Handcrafted from ULTRASKYN, for The Ultimate Feel Phthalate-Free, Body-Safe Proudly Made in America Dimensions: Total Length: 10 in. Insertable/Usable Length: 8 in. Width/Diameter: 2.75 in. Circumference: 8.25 in.