About this item The perfect solution for running low-voltage audio or video cables through walls to flat panel TVs, gaming systems, or home theatre systems. Works with HDMI cables, coaxial cables, standard A/V cables, speaker wires, DVI, S-Video, network RJ45 cables, and other low-voltage cables. Conceals cables and protects from accidental stripping; minimizes the exposure of wall openings. Outer dimensions: 4.5'H x 2.75'W. 2-pack; installation screws included; decorator wall plates included. Dimensions: 2.75'W x 4.5'H.