Total product length (wall mount applications): 3.25", Total product length (ceiling mount applications): 5.5". Designed to fit the following brands of home theater satellite speakers: Bose, Denon, Infinity, Insignia, Kenwood, LG, JVC, Onkyo, Panasonic, Philips, Pioneer, Samsung, Sony, Yamaha, Zenith and most other brands of satellite speakers. Included Items: Mounting brackets, ceiling extensions, allen wrench, instruction sheet as well as all adapters and hardware necessary to connect your speakers to the brackets and the brackets to the wall or ceiling. This speaker mount is VideoSecu brand, please report to Amazon.com if you receive a mount without VideoSecu logo