Height variations of KOA: 

Variation 1st - KOA - 1,2m top traverse

Variable height, 1,2 m top hanging traverse, three hanging eyes. The highest version of the KOA measures 5.2 m and its lowest functional version measures 2.7 m. The structure must not be built higher than the maximum specified.

Variation 2nd - KOAA - 2,0m top traverse

Variable height, 2 m top hanging traverse, 7 hanging eyes. The highest variation of the KOAA design is a maximum of 4 m, i.e. three tiers of legs. The structure must not be built higher than this maximum