Check the listing for details. Spark Plug Heat Shield Protector Engine Spark Plug Wire Separator Black 20Pcs. Condition: New. Listed at 25.99 USD. Compatibility: 8 Pcs spark plug wire heat shield fits most 90 degree, 45 degree and straight spark plug boots, 12 Pcs Engine Spark Plug Wire Separators for 8mm 9mm 10mm spark wires. Spark Plug Heat Sleeve: Made of a double braided fiberglass sleeve, which has good flame retardancy, heat insulation, and high-temperature resistance. Protecting the wire from being damaged by exhaust manifolds. Spark Plug Wire Separator: Made of high-quality aluminum alloy, Durable and lightweight, anti-collision, wear-resistant, can well protect and fix the spark plug wire and avoid loosening caused by crossing each other. Function: The spark plug boot protector can keep the spark wire and spark plug cooler in a high-temperature environment to avoid causing a fire. The spark wire separator can make the spark wire and the engine compartment well organized. Easy To Install: Just slide the stitched end onto the boot for Protection. The included Allen key will help you take the wire separator divider apart and put it back together under the hood, fash installation.