A metal leg is a mechanical or prosthetic limb primarily constructed from various types of metals, such as aluminum, titanium, stainless steel, or other durable alloys. It is designed to replace a missing or non-functional human leg, providing support, mobility, and functionality to individuals who have experienced limb amputation or other lower limb impairments.The primary structural element of the metal leg is a robust metal frame that serves as the limb's foundation. This frame is engineered to withstand the forces and stresses encountered during everyday activities.Metal legs often incorporate articulating joints at key points to mimic the natural movement of the human leg. These joints allow for bending at the knee and ankle, enabling walking, running, and other activities.The socket is the part of the metal leg that interfaces with the residual limb (stump). It is custom-designed and fitted to ensure a secure and comfortable connection between the prosthetic limb and the user's body.