Cantilever arms are structural elements that are designed to extend horizontally from a support point without any additional support underneath. These arms are commonly used in various applications, such as bridges, cranes, and architectural structures, where a protruding beam is required to provide stability and support. The unique design of cantilever arms allows for a greater reach and flexibility, making them ideal for situations where a traditional support system may not be feasible or practical. With their ability to distribute weight and withstand external forces, cantilever arms play a crucial role in many engineering and construction projects.