The price for one plug, 

Suit Ford Escape, Focus, Kuga 1.5 Turbo

Shell

• Thread Diameter12mm
• Thread Pitch1.25mm
• Seat TypeTapered
• Reach25mm (1")
• Hex Size9/16" (14mm)
• Terminal TypeSolid
• Gap.028" (0.7mm)

• Center Electrode
• MaterialIridium
• TypeFine Wire
• Size0.6mm
• ProjectionExtended Projection

• Ground Electrode
• MaterialPlatinum
• TypeStandard
• Quantity1

• Specifications
• ResistorYes
• Resistor Value5k Ohm
• Heat Range8
• FeaturesExtended metal shell