Fits satellite speakers weighing less than 10 lbs, with mount hole thread size 1/4" 20, 4mm or 5 mm. Fit key hole mounting Ideal for mounting home theater satellite speakers on ceiling or wall (drywall/rocksheet) Ball and clamp design provide flexible tilt, pan and rotate adjustment Adjustable +/-30 degree tilt, 180 degree pan and 360 degree rotation Standard hardware pack included. Black color VideoSecu new design speaker mount is the ideal solution for most speakers weighing less than 10 lbs. The thread size is 1/4" 20, 4mm and 5mm. Fit key hole mounting. The ball and clamp design offers flexible adjustment for the speakers to get better audio position. VideoSecu brand speaker mount, please report to Amazon if the product you received without VideoSecu brand. This mount have 1/4" 20 thread insert from 4/9/2013.