Thank you for viewing. This product is a set of 4 NGK ignition coils. I purchased these because I thought the ignition coil was the cause of the problem, but it turned out not to be the case, so I am selling them. I drove about 30 kilometers after replacing them, but then I switched back to the original ones. I purchased these on Amazon for 20,480 yen. - Brand: NGK - Model Number: U5281 - Quantity: Set of 4 *Please refrain from purchasing if you are sensitive to the fact that these are not new and unopened!