Provided are a device and method for rapidly and efficiently labeling wires or cables to be installed in machinery, vehicles, computers, buildings, or other structures, whether the wires are new installations or are replacing presently existing wires. In particular, the invention is a multi-sectioned wire-label which adheres to a wire and is self-protective, thus reducing the likelihood of damage to the label during the wire-installation process. The invention also describes multiple storage forms for pluralities of the wire-label, and a method for use of the wire-label itself.