The skeleton and joints of a high-quality sex doll are critical to its realism and functionality. The skeleton is the internal frame that provides structure, support, and flexibility to the doll. High-quality dolls typically feature metal skeletons or flexible plastic skeletons, which are designed to provide both durability and a wide range of movement. This allows the doll to be posed in realistic positions without the risk of joints becoming loose or unstable over time.

The joints themselves are typically made from high-grade materials that allow for smooth movement. Premium sex dolls feature advanced joint systems that allow for easy adjustments, ensuring that the doll can hold various poses—such as sitting, standing, or lying down—without any difficulty.

High-quality dolls also incorporate a “hyper-flex” feature, which means that the joints are capable of adjusting in ways that mimic real human movement. Whether it’s bending the knees, rotating the hips, or moving the arms, a well-designed skeleton provides the flexibility to achieve lifelike positions. This contributes to a much more immersive experience when using the doll, making it feel more natural and engaging.