The main construction element is a steel spring with corrosion protection by galvanizing and double powder coating. The body and the seat made from HDPE or HPL panel, resistant to reacting of atmospheric conditions. Steel fasteners galvanized or of stainless steel and protected with coloured plastic covers. Absence of sharp edges or gaps, which could cause seizing of: fingers, head and other body parts.
The device structure mounted on carbon steel, galvanized anchors. Anchors sunk in concrete directly in the ground.