Type: This Plug Wire Set can withstand extreme heat conditions, white ceramic boots, making them ideal for high under hood temperatures. Features: These wires come with male HEI and female socket distributor terminal ends, this wire set ensures good energy delivery to spark plugs ,with an 8mm diameter, these wires offer good RFI suppression for optimal performance. . Material: This Plug Wire Set is made from quality silicone and metal, ensures durability and longevity, providing reliable performance for your vehicle. High Performance: Professional manufacturing This Plug Wire Set , stable performance, has a long service life. Easy Installation: This Spark Plug Wire ignition kit , making installation straightforward and hassle free. Specification: Material: Silicone Ceramic Diameter (mm): 8.00mm RFI Suppression: Yes Conductor Style: Spiral core ; Notes: Ceramic plug boots will not work with shorty plugs. Size Chart: Package Size: 23cmx23cmx9cm/9.06inchx9.06inchx3.54inch Package Includes: 1 Spark Plug Wire Set Note: Please allow slightly errors 1-2cm differences due to manual measurement.