Retroreflectors are retro-reflective elements that mark the limits of public roads, helping those who travel on them to have a better view of the roads and their signage. For this reason, it is relatively common to have to buy reflectors adapted to the area and the surface on which they have to be placed. These are trapezoidal or rectangular plates that are used as a road support to guide the reflection of light emitted by cars.
In addition, for greater road safety, the reflectors mark the road, avoiding collisions or accidents caused by low visibility: they are useful both during the day and at night.
One of the main features that you can find in these devices is their functionality in illuminating the limits of the road when there is little light.