The picture below is the first commercial sex doll sold in Japan. It was very popular in the late 70’s
Pocket Doll became popular in the 80's. Basically it is a pocket pussy made in doll shape
At the end of 80's, sex doll were made of heavy latex without welded seams. With plastic hair, styled wig and plastic eye, sex doll started to look like human. The whole doll is in one piece so its hand and leg can't be moved.
At the beginning of the 90's, detachable sex doll became popular because they are easier to store. The hand and leg are well moulded. Also, there are more detail on the doll's face.
Later in the 90's, realistic skin became the most important aspect of a sex doll. Silicone sex doll was introduced during this period.
Also, Japanese try to put joint and bone inside the sex doll in the 90's. They hope the simulation of skeleton can make the hand and leg movable. However, it was a big failure
At the end of 90's, realistic sex doll entered the market. It is a life size doll that look and feel like human. The hands and legs moveable so you can make any posture with the sex doll. It is thermostable so you can take a bath with it.
Nowadays, sex doll looks better than human....
