The construction made from bonded laminated wood with dimensions of 90x90 mm, impregnated with a vacuum-pressure method or of carbon steel with corrosion protection by galvanizing and powder coating or of stainless steel. The upper beam profile 90x90 mm of carbon steel with corrosion protection by galvanizing and double powder coating. The chain of stainless steel, calibrated, rendering finger seizing impossible. The swing slings of galvanized carbon steel or of stainless steel. The crow's nest made from steel ropes with polypropylene coating.
The device structure mounted on carbon steel, galvanized anchors. The anchors sunk in concrete directly in the ground.