Our spark plug wires deliver at an affordable . They feature a low resistance conductor wrapped in durable,silicone double-layer jacketing for heat protection, strength, and durability. 8mm Blue Silicone and Synthetic Jacketing resist heat, oil, and abrasion. 500 ohm per foot resistance delivering greater spark energy, while improving power, idle, and fuel efficiency. Spiral Wound Core conductor for greater strength and durability that suppresses Electro Magnetic (EMI) and Radio Frequency Interference (RFI). Matching BLUE Silicone sheath protects against high exhaust temperatures. Double Spring Locking Terminals for secure-vibration proof connections. Colour:Blue Material:High temperature resistant silicone Package Contents: 1 * Spark Plug Wires 1 * lubricating oil 1 * splitter+1pack 1 * Dual Crimp Terminals 2 * Spark plug sheath 1 * Double Spring Locking Terminals Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.