Description: Universal: 10mm native mirror application. Fit for most motorcycles. Function: 10mm right hand threaded (please note the difference with M10 RH LH). Function: widen the field of view, provide better mirror position and safety protection. Accessories: No modification required, easy installation. Mateiral: Made of high reliable quality and durable aluminum alloy material. Specification: Material: aluminum alloy Thread diameter: M10 / 10 mm Size chart: 10 mm / 0.39 inch Package includes: 2x Motorcycle Mirror Mount Extension Cable Adapter 1 pack of accessories Note: 1. Please allow slight error due to manual measurement.2. Due to the difference between different monitors, the picture may not reflect the actual color of the item.3. I wish you a wonderful online shopping experience!