Kerbs are constructive elements in the form of a strip to finish the edge of a pavement, road, etc. They have prism shape and can have very different cross-sections, and their edges can be chamfered, rounded or simply cut off (bevel of +/- 3 mm), but always without fissures. Their line can be straight or curved, with a flat top surface maintaining the same slope as the pavement. The visible surfaces can have a flamed, bush-hammered or sandblasted finish, or simply sawn.