This Multi-function Double Ball head clamp is a multi-functional double ball head with a clamp at the bottom and a screw on the top. It can mount monitor and LED the one end via screw, and it can lock the rod on the cage via the clamp tightened by the locking knob. It could be attached and detached from the monitor quickly and the position of the monitor is adjustable as per your needs during . Feature - ColorBlack - Material: Metal. - Size: 6 x 5 x 1.5cm. - This is a multi-function ball head shoe clamp mount with tripod screw on top, made of metal. - Comes with standard hot shoe mount with 360 degree swivel articulation ball head for easy direction. tripod threaded screw on to attach video monitors, small led lights and lightweight dslr cameras. - Can be detachable to use as a single ball arm and a super clamp. - It can mount monitor and LED the one end via screw, and it can lock the rod on the cage via the clamp tightened by the locking knob. - It could be attached and detached from the monitor quickly and the position of the monitor is adjustable as per your needs during . Package list: 2