Our SSA45 Locking Speaker Adapter features a locking mechanism that expands to fill the slight gap between a mounting pole and a speaker socket, greatly reducing tilt and wobble. The adapter fits between a pole and a socket, employing a simple push/pull system to control its locking mechanism. <> Application Prevents speaker shaft wobble <> Diameter 1 3/8" <> Length 12" including 3" overlap on speaker shaft <> Weight Capacity Determined by stand used <> Construction Steel tubing; plastic pressure pads <> Color Black