【High Performance】 Torch K5RF-11 spark plugs offer excellent ignition performance, improving engine efficiency. 【Durability】 The combination of metal and ceramic ensures a long lifespan and durability. 【Quantity】 Sold as a set of 4, allowing for the replacement of multiple spark plugs at once. - Brand: Torch - Model Number: K5RF-11 - Quantity: 4 pieces - Material: Metal & Ceramic - Application: Automotive spark plugs Thank you for viewing. I replaced these because I got iridium plugs. Used on a Subaru PLEO RV-1 for approximately 100,000 kilometers. They were still functional, so I kept them for emergencies. I will ship them in the iridium plug box. Please note that what you are receiving is NOT iridium. *Just in case These were found while organizing the garage. I am selling them because I have already replaced the vehicle. Due to long-term storage & being used, they are JUNK, sold as-is, no returns accepted.