Features: Efficient and stable controller motherboard ensures a smooth cycling experiences. Using high-quality Alloys componentwith strong durability; Easy to install. Provide precise speed and power control. Suitable for electric scooters enthusiasts, maintenance technicians, and users who need to replace or upgraded scooters component. Suitable for daily commuting, city cycling, and long-distances travel, providing reliability performances support for your scooters. Specifications: Dimension:85x73mm/3.35×2.87in Component:Alloys plastics Package Includes: 1pc High Performances Controller Board note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you will not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color.