Rockfall barrier is a rockfall protection system which is used to prevent rocks falling down to the road to protect pedestrians and vehicles from danger. Hexagonal wire meshes are double twisted and the edge of the mesh is reinforced by a thicker wire – selvedge wire. It can be used individually or combined with other meshes as active rockfall barrier. Fastened by anchors, bolts and steel cables, hexagonal wire mesh is strong and firm enough to block the rocks or debris and minimize the damage of natural disasters.