1. 360-degree rotation, reinforced base, wide field of view 2. Easy to install, random adjustment, safe and reliable, insulating objects 3. The reflective particle strip on the back will reflect light when exposed to light, making riding safer 4. Installation diameter: 22-25mm 5. Installation type: electric bicycle, mountain bike, bicycle 6. Double nut fixed adjustment, more stable and strong 7. Material: engineering plastic 8. Size: 18x10x6.2cm
