Free-standing cage mast on a triple weight (trójnóg). It is used to build elevated horizontal air terminals (safety cages). Cable span between two masts of the same construction: 10m. RECOMMENDATION: Use of AN-81R leveling screws, mast base - tripod up to 6°. H1=70mm, Diameter 1=33.7mm, Diameter 2=16mm, Diameter 3=20mm.