Features: This SC16HR11 double iridiums spark plug is made of premium double iridiums material, providing stable and reliable ignition performances. The design and material of this spark plug enable quick and uniform ignition, effectively improving combustion efficiency, reducing fuel consumption, and emissions. Corrosion protections: outstanding engine protections due to anti-seize nickel-plated housing and thread. Suitable for regular vehicle maintenance, replacing worn out or damaged spark plugs, ensuring the normal operation of the engine and fuel efficiency. Idealfor drivers pursuing high performances, this spark plug can be used as an upgrade accessory to improve ignition efficiency and increase power output. Specifications: Material:Electrode Material Size:As Picture Shown Quantity:1pcs/4pcs Part Number:90919 01275 SC16HR11 Note: .Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. .Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings. Package includes: 1pcs/4pcs Spark Plugs