Heavy Duty Wall Mount Brackets for Bookshelf Speakers and Center Channel Spea... Consists of Dual Heavy Duty Uni-Speaker Wall Mount Brackets Supports speakers weighing up to 13.2lbs (6kg) Bracket Depth (distance from wall): 18cm / 7.09" (inches) Bracket Width: 9.0cm / 3.54" (inches) Note: Mounting hardware must be purchased separately. Mounting screws and machine screws are readily available at most hardware store (example: Lowe's, Home Depot, Home Hardware)