Specification Packing: 1PC Material: plastic Dimensions: 65mm(2.56in)x28mm(1.1in)x46mm(1.81in) Highly wear-resistant, durable. Using this throttle allows you to easily control the speed of electric bicycles and scooters The installation is simple, easy to use, no other fixing tools are needed, and the appropriate contour design will not interfere with the brake lever or the gear lever. Easy to install, no additional adjustments are required, and old or damaged ones can be replaced directly. Specially designed for Mijia M365 electric scooter. Specially designed for Xiaomi M365 scooter, it can directly replace the old or broken one. Long-term use will cause the throttle to be slow and insensitive, and it will not rebound with one click, so it needs to be replaced this time.