This is a set of 4 NGK Iridium spark plugs. Product model number: 1108, LFR5AIX-11P, weight: 181 g (per plug). Inheriting the potential of IX, further sustaining high performance! The ultimate long life, maintenance-free, and outstanding fuel efficiency! While maintaining the performance of IX plugs, long life is achieved. Precious metals are used for both electrodes: iridium alloy for the center electrode and platinum tip for the outer electrode. In addition to the ignitability and fuel efficiency of IRIDIUM IX plugs, durability is also improved. These have been in stock at a local repair shop for a long time, so the packaging is damaged, but the contents are as shown in the photos. Please consider purchasing if you understand this.