The construction consists of 9 vertical columns and fifteen crossbars placed on the following heights: 200 mm, 500 mm, 600 mm, 700 mm, 800 mm, 900mm (2 pcs.) 1000 mm, 1100mm, 1600mm, 1700mm, 1800mm, 1900mm, 2000mm, and 2200mm from the rubber foundation. Crossbar fittings are put into effect with collars. The length of all crossbars is 1700 mm. The height of columns is 1200 mm- 3 pcs, 2000mm- 3 pcs and 2300mm- 3pcs.