Welcome to our shop, our integrity is supreme, the product quality and quantity are guaranteed, I wish you a happy shopping!The following are the product detailsMaterial: PC+ABSColor: BlackDiameter: 30CM-------------------------------------------------Clear impact and pressure proofing, safety and protection traffic facilities, mirror acrylic material, clearer imaging, ABS mirror back, strong impact resistanceThe rotating adjustment handle is made of waterproof and oxidation resistant material to ensure that the product does not affect the normal work under humid environment, and the angle can be adjusted according to the actual situation.Applicable occasions: country roads, corners of intersections, sidewalks, warehouses, hospitals, factories, parking lots, farms, intersections, schools, highways, intersections, shopping malls, supermarkets, etc.This product is manually measured with an error of 1-2 cm;Due to light, there may be some errors in the display and shooting angles; this is not a quality issue;We will pack each product properly. If there is any damage during transportation, please contact us in time!-------------------------------------------------This wide-angle lens is very practical in any obstacle space and can be used to overcome obstacles, which can reduce blind spots and widen the field of view.A sincere greetingPlease be happy every day.