Fire-resistant cable trays Fast Klick, 60 mm in height, are available in various widths of 100 mm, 200 mm, or 300 mm. The length of an individual cable tray is 3.0 m. The cable trays are attached to a wall or ceiling with suitable supporting components (NKP) that are in compliance with the installation instructions for fire-resistant cable paths. Cable trays are joined in only 3 steps, without additional fastening elements or bolting material.