The 12234 C7HSA 4629 Rotary NGK Ignition Spark Plug is a high-quality replacement spark plug designed for lawn mowers and outdoor power equipment. Made by the trusted brand NGK, this spark plug ensures reliable ignition performance for a smooth and efficient engine operation. With this quantity-one pack, you can easily replace a worn-out spark plug and maintain the overall health of your lawn mower or outdoor power equipment.