BCIPA 49504 4" x 8" Clamp-On Convex ReviewbP PP CIPA 49504 4" x 8" Clamp-On Convex PConvex design helps to prevent blind spots when you are passing or changing lanesPQuick and easy clamp-on mountingP4" x 8" rectangular clamp on mirror does not obstruct original mirrorPBest for larger mirrors with bracket armsPAdjustable clamp rotates for horizontal or vertical applicationP