1/2PCS Bike Mirrors, Acrylic Convex Oval Rearview for Cycling360° Rotatable Shockproof Handlebar Mount Mirrors for Mountain &

An adjustable handle-bar mounted bicycle rear-view mirror featuring a wide-angle convex glass design. It includes a rotatable mounting bracket that fits handlebar diameters ranging from 0.59 to 1.18 inches (15 to 30 mm), offering an adjustable viewing angle for road bikes, mountain bikes, e-bikes, and city commuters.