Delineator for an obstacle within the road

It is a sign placed within the road to warn you that there is an obstacle. It can show the start of a traffic island.

It is reflective, so it is seen better at night: it has no light of its own and it is not at the sides of the road.

Word: Rifrangente = something that shines when headlights reach it.

The exam is in Italian: key terms and trap words are kept in Italian, so you learn them.