It is made of high-strength aluminum alloy, which is earthquake-resistant and durable. Intelligent design provides stable speed and sensitive control of and direction change. Solid metal can effectively protect internal circuits and facilitate heat dissipation. Durable cables and interfaces low failure rate when used for a long time. High brightness, improve night safety. Type:modified and upgraded accessories Type:electric modification Colour:As Shown Material:Mixed material Package Contents: 1 * E-bike controller kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.