5-Pack Of 1U Vertical Cable Management Hooks For 19-Inch Server Racks; Ideal For Keeping Network & Power Cables Organized On Server Racks/Cabinets - Reduce Cable Strain And Clutter For Improved Airflow - Cable Manager D-Ring With A Large Opening (0.4In/11Mm) For Effortless Cable Insertion; Use As Lacing Points For Cable Ties Or Securing Cable Bundles - Constructed From Durable Steel W/ Powder-Coated Finish For Long-Lasting Use - D-Ring Wire Manager For Patch Panel/Server/Switch/Nas/Pdu Cables