Jumper wires are short, flexible electrical wires used to connect different components in electronic circuits. They typically have connectors on both ends, allowing them to easily plug into breadboards or other devices. Jumper wires come in various lengths and colors, making it easier to organize and identify connections in a project. These wires are commonly used in prototyping and testing circuits, especially with microcontrollers like Arduino or Raspberry Pi. They help create temporary connections without soldering, making it simple to modify or troubleshoot a circuit. Jumper wires are essential tools for hobbyists and engineers alike.