VideoSecu new design steel construction speaker mount is the ideal solution for most speakers weighing less than 10 lbs. The ball and clamp design offers flexible adjustment for the speakers to get better audio position. This bracket will fit speakers with 1/4" 20 thread, and 5mm 4mm holes. Fits key hole mounting. Each mount has 2 toggler bolt (total 4 per box),so the mount can be installed on drywall/rocksheet.