The vagina of a realistic sex doll is designed to be flexible and stretchy to accommodate penetration comfortably.
Material: Usually made from soft, elastic materials like TPE or silicone, which stretch to fit different sizes.
Diameter: The internal vaginal opening typically ranges around 3 to 4 cm (1.2 to 1.6 inches) when relaxed but can stretch much wider.
Stretchability: The material can safely stretch to accommodate average erect penis sizes (around 12–16 cm 4.7–6.3 inches in diameter), and sometimes larger, without damage if used gently with enough lubrication.
Depth: Vaginal depth varies but often is around 15–20 cm (6–8 inches) or more.
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