Toyota Genuine (OEM) Spark plug. Model: FK20HR11. Quantity: 4 pieces. I bought them for my car because I felt the car was lagging in power. After installing the new ones and driving for 5-6 kilometers as a trial, I realized the old ones were fine! They can be driven much more. Brand new plugs. Buying new ones would cost around 6000 Taka! If anyone needs to change their car plugs, this is a good option. You will save some money.