This electric finger throttle is practical for electric tricycles, offering precise speed control and a comfortable grip. The throttle is equipped with a speed indicator, allowing riders to monitor their speed in real-time. Installation is straightforward, and the throttle is compatible with most electric tricycles, making it a versatile addition to your vehicle. Features -Color:Black -Material:PC -Size:14.00X8.00X4.50cm/5.50X3.14X1.77in -Versatile fit: designed to be compatible with a wide range of electric tricycles, making it a versatile choice for users - direction change: easily switch between forward and reverse with a single twist, enhancing maneuverability -Adjustable acceleration: adjust the throttle acceleration to match your driving preferences for ride -Efficient speed control: quickly and easily control the speed of your carburetor, ensuring optimal performance and stability -Sturdy construction: constructed from sturdy materials, this throttle is both durable and dependable for longterm use Package list: 1 knob