This item is provided by Crutchfield.com and includes free phone technical support for the life of the product. Details on how to take advantage of this service will be included with your package. Should you have any issues locating information on how to contact Crutchfield Technical Support, please contact this website's Customer Service department. This blanking panel fits in your Sanus steel component rack and is flanged to allow airflow into the cabinet. This airflow helps keep stored components cool and operating optimally. The metal panel is coated with a durable powder-coated finish that resists scratches. What's in the Box: 1. 3U steel flanged blanking panel