- Precise, responsive control: The thumb throttle delivers stable speed management with instant response. It can be mounted on either the left or the right handlebar and responds at a touch for smooth, predictable acceleration. - Durable ABS construction: 2-in-1 throttle lever made from hard ABS. Smooth, long-lasting finish with built-in heat dissipation that protects the internal circuit and extends service life. - IPX5 waterproof protection: The throttle cover uses ABS with IPX5-rated water resistance, keeping performance reliable in rain or splashes and preventing seepage. - Comfortable grip and easy adjustment: Ergonomic thumb lever reduces wrist fatigue during long rides. One-handed speed control lets you adjust the throttle anytime while riding. - Broad compatibility and simple install: Fits most scooters with standard thumb throttles. 2-in-1 design supports left or right mounting for flexible setup. - Practical use scenarios: daily urban commute in light rain; riding on gentle hills for steady acceleration; casual one-handed cruising on flat roads.