They are small structures of easy installation and low cost, so they are an excellent option for installation in high places, such as the roofs of buildings; they should be used for moderate loads, which means a smaller number of antennas, their height ranges from 6 to 24 Mts. They are regularly used to support the laying of fiber optics, GPS antennas, 4G and 5G.

They consist of one or several truncated cone-shaped elements with a polygonal cross-section. For design purposes, material quality, and manufacturing standards, we are governed by the following standards: ASTM A123, ASTM A153, ASTM A570, and AWS D1.1-74.