This copper core wire set has the 90 degree spark plug boot already assembled. Includes 4 spark plug wires, & 1 coil wire. The longest plug wire is 35″ long, and the coil wire is a whopping 59″ long. Just simply trim to the lengths you need. Also included are the copper terminal ends & boots for final assembly. I believe that in a majority of the complaints, of poor engine performance, the spark plug wires are the culprits. Many tractors have wires that are bare or cracked, and many have the “Radio Suppression” or Silicone wires. Those wires will actually shorten the life of a magneto. Here is your chance to economically replace them with MADE IN THE USA wires.