The most premium sex dolls are usually made from silicone or thermoplastic elastomer known as TPE. Dolls made of either material can be very lifelike, with faces and bodies modeled on real people in some instances, with realistic skin material (similar to that used for movie special effects), and with realistic (or even real) hair. These dolls usually have an articulated PVC or metal skeleton with flexible joints that allows them to be positioned in a variety of positions for display and for sexual acts. Silicone or TPE dolls are much heavier than vinyl or latex inflatable ones (which consist mostly of air), but are roughly half the weight of a real human being of comparable size.
In this connection we may refer to fornicatory acts effected with artificial imitations of the human body, or of individual parts of that body. There exist true Vaucansons in this province of pornographic technology, clever mechanics who, from rubber and other plastic materials, prepare entire male or female bodies, which, as hommes or dames de voyage, subserve fornicatory purposes. More especially are the genital organs represented in a manner true to nature. Even the secretion of Bartholin's glans is imitated, by means of a "pneumatic tube" filled with oil. Similarly, by means of fluid and suitable apparatus, the ejaculation of the semen is imitated. Such artificial human beings are actually offered for sale in the catalogue of certain manufacturers of "Parisian rubber articles."[3]
TPE is the epitome of sex dolls if you’re going for one that feels good, and that is flexible. While maintenance is much broader in spectrum in terms of what you got to do, sometimes for those of us that do want to work to preserve our sex dolls, this is the one for you. TPE sex dolls are a great option if this is what you’re looking for, and you should definitely think long and hard on this before you do choose to spend money on one, since often, this can be a big factor in the decision you make. 
tually a relatively-new type of material when it comes to using them in sex dolls. This material is a lot cheaper to get, and often, it is much more affordable than silicone. You can check any site right now and you’ll notice that a TPE sex doll is much cheaper than that of a silicone one. TPE is also a mixture of plastic and rubber, so often, the skin feels a lot better.
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