Movable and articulated sex dolls utilize advanced engineering and materials to mimic human movement and flexibility, providing a more realistic experience. These dolls are equipped with multiple joints—such as shoulders, elbows, hips, and knees—that allow for a wide range of motion. The joints are often constructed from durable materials like reinforced plastics or metal, combined with flexible components to enable smooth articulation. Internal frameworks, sometimes made of metal or high-strength composites, support these joints and maintain structural integrity during use. Some models incorporate pneumatic or hydraulic systems to facilitate more lifelike movements, such as posing or adjusting positions with minimal effort. The skin of articulated dolls is typically made from silicone or thermoplastic elastomers, which simulate the feel of human skin and are resistant to wear. Advanced models may include motorized parts controlled via remote or smartphone apps, allowing users to customize movements or positions seamlessly. Sensors and feedback mechanisms can also be integrated to enhance interactivity. Overall, the technology behind movable and articulated sex dolls combines robotics, high-quality materials, and sophisticated engineering to deliver a highly realistic and customizable experience that closely mimics human motion and responsiveness.