Description For handlebars with a diameter of about 15-35mm, it can also be installed on the handlebars and the handlebars. The glass piece is a wide-angle convex mirror with a wider field of view and moderate deformation. 3D adjusts the axial direction. In theory, there is no blind spot in the mirror reflection light. However, if it is installed in the middle of the handlebar, the body or arm may block the line of sight when riding. Bring it, no need to look back at the road surface, provide the personality and practical rear view program for the majority of riders. Can be used on the left or right side without the need to distinguish the side when installing.