LEDAUT 12pc Engine Spark Plug Wire Separator Divider Suit for 8mm 9mm 10mm (Black) LEDAUT wire separators great for 8MM/9MM/10MM wires.used for the sprak plugs wire. well protect the wires Wire separator divider are made of aviation grade aluminum. durable and light weight. 12pcs for 8 cylinder vehicles , more will works great. Allen key was provided so it made the job even faster. Fixed and organized the engine wires perfectly .makes sprak plugs wire and the engine bay look neat.