The Equality Leg is a leg prosthesis with a low-cost and easy-to-use design. It consists of knee and ankle parts and uses composite elastic materials to simplify the precise and complex joints of ordinary prostheses, thereby ensuring that the basic movement needs of users can be met while the cost is greatly reduced. It was designed to give people back their freedom by making it possible for them to walk again and earn a living—and feel hope for the future.