There are 2 alternative methods to install these cable hiders- stick them on the wall surface using the strong self adhesive tape if you don't want damage the wall, or mount them on wall using the screws and drywall anchors we provided. It won't take much time and effort. The 138-inch cable management channels are pre-cut into 9 sections (15.4 inch each) to provide optimal installation length. Eliminate unnecessary cuts and make your DIY route plan more flexible and easier. Our cord cover kit is able to hide AWG cables, HDMI cables, Ethernet cables, USB cables and power cords,etc. Protect your children and pets from cables and cords hanging near the floor. Made of durable PVC material, these cable raceway ducts are flexible, impact resistant and self extinguishing. Sturdy gray covers hide cables inside and they can be painted in any color as you wish. Alritz cable concealer kit is used for neatly organizing under desk or behind furniture cables, cord of wall mounted TV, home theater, computer, server, distribution box at home, office. Save you from cable mess and provide a tidy appearance.