Wide Compatibility Design: The hand brake levers fits MI4 and various electric scooters, solving compatibility issues when replacing or upgrading parts. Tool Frees Installation: Features a quick install design that requires not tools, simplifying the replacement process, perfect for emergencies repairs or part upgrades. High Strength Materials: Made from ABS with carbon fibre nylon hardware, ensuring long terms . Withstands extended use and various weather conditions. Integrated Bells Function: Equipped with a built in bells for enhanced riding . Easily alert pedestrian during commutes or leisure rides for city and campus environments. Package includes: 1Pc Hand Brake Levers