COMPATIBILITY: Dual sound bookshelf satellite speaker mount brackets built to be mounted on stud, concrete or brick/stone walls. Max. Capacity: 55 lbs (25kg) VERSATILITY: Adjustable Tilt up and down 7.5 degrees, Swivel left and right 45 degrees, width of speaker should between 5.5 to 11 inches SEAMLESS DESIGN: The modern knob design is complemented by a sleek reinforced black coat for a contemporary appearance while immersing in optimum listening experience. DURABILITY: Metal inner construction ensures sturdy vibration free mount to wall. PACKAGE INCLUDES: 2 x WALI White Speaker Wall Mount Brackets, 1 x Mounting Hardware Kit, 1 x User Manual, experienced and friendly US based customer support available to assist 7 days a week.