Multi-walled carbon nanotubes (MWCNTs) are cylindrical structures made of multiple layers of carbon atoms arranged in a hexagonal pattern. These tubes can have diameters ranging from a few nanometers to several micrometers and can be several micrometers long. MWCNTs exhibit remarkable mechanical strength, electrical conductivity, and thermal stability, making them valuable in various applications. Due to their unique properties, MWCNTs are used in fields such as materials science, electronics, and nanotechnology. They can enhance the performance of composites, serve as conductive additives, and even play a role in drug delivery systems. Their versatility continues to drive research and innovation in advanced technologies.