Route cables along the rail and this joint allows the cable run to make a 90-degree change in direction, to go up or down a wall, for example. Make your cable runs look like they were professionally installed with this professional Cable Management. SPECIFICATIONS Product Category: Cable Cover Rank: Standard Material: ABS Dimensions: 127x127x21.5mm (5'x5'x0.85') Installation: Snap-On Color: Black Accessory Kit Package: No Instruction Manual Included: No