What kinds of sex doll exist, what is the difference of them?
Silicone sex doll: Real enough, high-cost, easy cleaning. Less sensitive to heat.
TPE sex doll: Softer and more realistic, cheaper, less maintenance. Easy heating.
Sex dolls are essentially meant to pleasure a man who wants to be penetrated as real as possible. Unlike other sex toys, cheap sex dolls have a complete set of lifelike sexual organs (oral, anal, vagina). They can also be used with boobs and butts that exactly get the heart rate rising or the blood pumping.