Compensate the blind spots of the driver, assists checking the diagonal backward and downward from the blind spot mirror (left and right set/door mirror attached) 360° angle adjustment, blind spot mirror, supports daily driving safety, rearview mirror, curved mirror, oblique rear vision Attaches easily with double-sided tape included on the back and can be adjusted after installation Wide Field of View: The curved mirror allows for wide blind spots, and a wide angle convex mirror auxiliary mirror to compensate for blind spots Size:5*5CM