High Wear-resistant and excellent durability.100% Band new and high quality. Controller Ebike 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. Material: Mixed material Colour: As shown Package Contents: 1 x Ebike Controller 1 x SW900 display 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.