They consist of two vertical support pillars and a metal product of a complex shape "Snake".
All elements of the complex are fastened with bolted connections. The support posts and crossbars are made of round steel pipes of different diameters. Painting of metal parts with polymer-powder or permanent anti-corrosion paint, resistant to difficult atmospheric conditions, abrasion, UV exposure.
The installation of the complex is carried out with the obligatory concreting of the support pillars in the ground.