Spark Plug Wire Set for 4 Cylinder Gasoline Tractors with IH Magneto or IH Battery Distributor Ignition. Exact Fit for Models: International 350 Hi-Utility Tractor Lacquered Braided Cotton Cloth Cover over modern insulated wire with pure copper wire core (non-resistor) wire. Made and Assembled to Original Length, with upgraded modern terminals on both ends, and Rubber Boots on spark plug end. . Not for Use with Electronic Ignition. Made in USA.