D-Line Cable Tidy Unit a popular solution to contain extension blocks and organise cables. The smart tech design of D-Line cable organiser box blends with modern surroundings. 3x rear cable entry/exit slots enable cables to be routed to left-side, right-side or vertical. All D-Line cable management solutions have been fully safety tested. D-Line's range of Cable Organisation / Storage Boxes are produced from electrically-safe ABS material with an effective click-lock lid. D-Line's Cable Storage Box can sort unsightly cables around the home and contribute to a pro-active approach to Health & Safety in offices. D-Line Large Cable Management Box - 415mm (L) x 165mm (W) 135mm (H) 1x D-Line Cable Management Extension Box. Large, White.