Outdoor Stainless Steel Traffic Safety Mirrors are robust and virtually unbreakable. The mirror face is made from highly polished, mirror quality, 18 gauge stainless steel and can resist damage from projectile objects such as rocks or vandalism. These outdoor convex mirrors can be installed where ever a driver's field of vision is blocked, such as driveways, blind corners on roads and highways and at hard to see intersections. The extra strong galvanised steel bracket is designed to mount to a 75mm pole. Ideal in vandal prone areas where graffiti can be easily removed.