Fitment: For most lawn mowers. Engine response and control: The throttle handle allows smooth power adjustment for precise operation. It helps regulate speed and performance, contributing to more accurate tool response in a variety of working conditions. Functional stability: The engine switch maintains reliable engagement between operator and system. It supports consistent start and stop control, reducing interruptions and improving handling during extended tasks. Power flow management: The switch controls throttle input to guide engine behavior. It enables faster speed changes for immediate performance needs and supports safer operation. Use scenarios: While mowing on uneven terrain or slopes, the throttle can be adjusted smoothly to maintain control and traction. When cutting through grass with variable density, throttle adjustments help keep engine RPM steady and performance predictable. During long mowing sessions with frequent starting and stopping, the reliable engagement helps reduce downtime and fatigue.