Fit most speakers weighing up to 10lbs (4.5 kg). Thread size: 1/4" 20 thread, or 4mm, 5mm. Fits key holes mounting. Perfect adjustment: tilt +/-30 degrees, 180 degrees pan and rotate 360 degrees Ideal for mounting home theater satellite speakers on ceiling or wall (drywall/rocksheet) Clamping design supports fasten the ball, making it tilt and rotate flexibly Standard hardware pack included. Black color This is a new design. Delicate appearance with steel construction can supports less than 10lbs (4.5kg), and it fits 1/4" 20, 4mm and 5mm of the thread size. Clamping design fastens the ball stably, then the ball design realized tilting, swing and rotating perfectly. In addition, each mount has 2 toggler bolts, so the mount can be installed on drywall/rocksheet. VideoSecu brand speaker mount, please report to Amazon if the product you received without VideoSecu brand.