On-Stage SS7323B Pair of Wall Speaker Brackets (Black)Ideal for sound contractors, mount this bracket on the walls at night clubs, recording studios, home multi media rooms, schools or just about anywhere! For mounting on flat surfaces this adjustable bracket features a tilting angle adjustment as well as a 30swivel hinge. Applications: Small Medium Speaker Cabinets For mounting on flat surfaces Angle adj: 45 90 Swivel adj: + 30 Fits 1 3 8" cabinet inserts Shaft length: 13" Weight Capacity: 100 lbs