Designed for installing electrical outlets and switches into existing walls and ceilings, these boxes are perfect for all aspects of home theater, security, data comm, telecom and CATV/satellite installation. This wall-box is standard 23/4" depth, others are 33/4" deep, taking advantage of the full studded wall thickness and allowing added space when large numbers of cables are used. Attached rotating clamps allow boxes to be easily installed in a cut opening, requiring only a drywall saw and Philips head screwdriver.