Compatibility: Designed to fit handlebars with a diameter of 2.2cm, ensuring a secure and universal fit for various bicycle models. Crash Recovery Mechanism: Equipped with an innovative auto-repositioning lever that quickly resets itself after a fall, allowing for swift recuperation and continuation of your ride. Lightweight Construction: Engineered to be lightweight, it ensures minimal additional load on your bike, preserving the bike's performance and handling. Durable Material: Crafted from high-grade Aluminium Alloy, this component offers exceptional hardness and long-lasting durability, standing up to the rigors of regular use. Versatile Compatibility: Suitable for an array of bicycle types including mountain bikes, road bikes, and kids' bikes, enhancing the usability across a wide range of cycling needs. If there is any problem with this Bike Brake Levers, please contact customer service in time, and you will get a satisfactory result.