The product is a set of 4 NGK BPR8EIX 6684 Iridium IX spark plugs. These spark plugs are designed for ignition systems in vehicles and are known for their high performance and durability. The part manufacturer, NGK, is a reputable brand in the automotive industry, and the spark plugs are manufactured according to OE/OEM specifications. With a gap of 0.6mm, these spark plugs are suitable for various vehicle models and are a reliable choice for maintaining optimal engine performance.