New in original manufacturer box, made in USA, fire wire coil, 200 meters, part no. PR-FW-200, designed to be part of a fuse or act as a fuse to carry the current of a circuit and which all, or part of which, melts when the current exceeds a predetermined value for which it is rated, used by EOD units in all branches of the US Military (combat tested in Iraq and Afghanistan), solid dual strand copper, 23 gauge wire, resistance 200m - 28ohm, lubricant coated, insulated, shunted ends, and will spool out of a vehicle up to 20mph.