Cable trays, 30 mm in height and 50 mm in width, made of galvanised sheet metal or stainless steel, optionally powder painted in the desired colour. The length of an individual cable tray is 2.0 m or 3.0 m. Cable trays are mounted to the wall or ceiling using appropriate NKP brackets. Joining cable trays together without additional fixing elements is carried out with PP M6x12 (4x–8x) connection bolts and PP M6 (4x–8x) flange nuts.