Your prosthesis is made up of many different components selected specifically for you and your lifestyle. The prosthetist begins by taking a series of measurements and a cast of your residual limb. From the cast, a mold is made and used to design a custom socket. Your residual limb fits snugly in the socket which is attached to the other components that make up your prosthesis.
There are also a variety of skin-like coverings that can be used to resemble your other limb as closely as possible.