【Brand and Model Number】 DENSO spark plugs, model number FK16BR. This is a reliable brand that contributes to improved engine performance. 【Quantity and Condition】 This is a set of 4. They show signs of use, but are still in usable condition. 【Spark Plug Features】 These are standard type spark plugs, suitable for various vehicles. They are an important part for improving engine ignition performance. - Brand: DENSO - Model Number: FK16BR-AL8 - Quantity: 4 - Condition: Used - These were installed in an NHP10 Aqua. They were removed at 125,000 kilometers. DENSO's website recommends replacement at 200,000 kilometers. Thank you for your interest.