Secure cables and lines from falling out, especially when laid vertically. They are clicked onto a single bar of the duct. The mounting height of the wire retaining clip on the bar can be freely selected. Cables can be fed in and out in the gaps between the bars. The length can be shortened to duct widths of 100 - 40 mm (predetermined breaking point), so only one clip size is required per duct type. HTWD-NFWR for the HTWD-PN and HTWD-HF (metric) wiring duct series. HTWD-WFWR for the HTWD-PW wiring duct series. The HTWD-NFWR and HTWD-WFWR wire retaining clips are ideal for subsequently securing cables in wiring ducts. Simply click the wire retaining clips onto a duct bar and the cables are held in the duct, even if the cover is removed.