Unbreakable Lens:Curved security mirror is made of shatter-proof Polycarbonate which is sturdy but lightweight!The impact resistance of polycarbonate lens is about 30 times stronger than the same thickness of acrylic or glass!Won’t broken easily when hit,PC lens will bounce back to its original shape when pressure is gone.Features excellent weather resistance,can withstand the harsh elements and conditions,extremely high or low temperature,such as rain,snow,strong wind,direct sunlight