Keep your lawnmower running smoothly with this mountfield RM45 RM55 RM65 air filter and spark plug service kit. The kit includes filter and NGK BCPR5ES spark plug, all designed specifically for these models of lawnmowers. Ensure that your lawnmower is operating at its best with this high-quality service kit. Perfect for all lawn mower enthusiasts, this kit is a must-have for anyone looking to maintain the performance of their machine.