The Hoppipola 4 Pack Governor Spring 793604 799179, designed specifically for B-Rigg's and St-Ratton lawn mower parts, is a robust and reliable metal replacement throttle control spring. This 4-pack design ensures ample supply for easy access, while the high-quality metal construction ensures durability and longevity. The spring's shape is optimized for precise fit and function, providing smooth and consistent engagement with the governor housing. This upgrade ensures a smooth and controlled speed adjustment, reducing the need for manual adjustments, and providing a more efficient and efficient mowing experience. With the addition of these springs, you can extend the lifespan of your lawn mower's throttle control system, reducing the frequency of repairs and maintenance, and saving both time and money.