Jumper WireJumper wires are short lengths of electrical wire that are used to make temporary connections between two points in an electronic circuit. These wires are typically used in prototyping and testing applications, where they can be easily inserted or removed to change the circuit's configuration or test different connections. Jumper wires are commonly used in breadboard circuits, where they are used to connect the various components on the breadboard. They are available in a variety of different lengths and colors, and are typically made of flexible, insulated wire that can be easily bent and shaped to fit into tight spaces in a circuit.