The Thin D is handcrafted in lifelike detail, without balls for maximum length insertion. 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. Slim design, lifelife detail. O-ring harness compatible. Suction cup base. Made in the USA.