Cooper B-Line Metallic Channel Cable Tray is available in ventilated and non-ventilated options. Ideal for light-weight indoor applications, they are often used to separate and support smaller cable runs from larger cable runs.Features of the system include: Sides and bottoms open for loading and inspection of the cablesLight-weight, corrosion-resistant aluminum constructionCable fill area free of sharp edges and connection hardwareAccessory options for complete installations without traditional cable tray fittings