The Stihl OEM On Off Stop Switch is a replacement part designed for specific Stihl models such as FS38, FS45, FS46, BG55, BG65, and others. This stop switch is suitable for 2-stroke engines and is powered by gasoline. It is a black color and comes in a pack of 1. No assembly is required, making it easy to install for Stihl string trimmers, weed trimmers, and blowers. This genuine Stihl product ensures quality and compatibility with your outdoor power equipment.