This is a 4-pack of Torch Takumi Spark Plugs, designed to replace NGK BMR6A and compatible with many other spark plug models. These plugs are suitable for use in the Flymo Chevron 420GL Lawnmower and other applications. The Takumi BM6RSC Performance Spark Plug is a reliable choice for your equipment. This pack includes 4 spark plugs for your convenience.