1、Oxidation treatment, corrosion resistance, having bright color, durable and sturdy. 2、Multi-functional, firm and durable to place car lamp, bicycle speed meter, mobile phone holder, bell and so on. 3、Rearview mirror extension bar is stable and anti-shake, uneasy to be shaken off and convenient to install. 4、Made of quality aluminum alloy material, solid and sturdy, having long service time. 5、Suitable for all kinds of bicycles including mountain bike, road bike, and so on. Features: 1. Oxidation treatment, corrosion resistance, having bright color, durable and sturdy. 2. Multi-functional, firm and durable to place car lamp, bicycle speed meter, mobile phone holder, bell and so on. 3. Rearview mirror extension bar is stable and anti-shake, uneasy to be shaken off and convenient to install. 4. Made of quality aluminum alloy material, solid and sturdy, having long service time. 5. Suitable for all kinds of bicycles including mountain bike, road bike, and so on. Specification: Condition: 100% Brand New Material: Aluminum Alloy Color: Black Package List: 1 * Bicycle Conversion Bracket