Car opened in road inevitably has needs emergency docked roadside of situation, then triangle warning brand can on useful has, regardless of is day, night or weather bad of when, as long as put it put in car Hou number meters far of place on can advance warning from behind opened sailed to of vehicles, because is reflective type, so night has light warning brand on is bright is striking, big far on see has. Foldable reflective warning triangle folds together when not in use, easy to carry, open and placed it in the back until you can use are essential safety products for your car.