<p>This clamp mount is make of aluminum,the maximum open distance is 54mm,is very ease to install and can be remove very quickly.</p> <p>The articulating arm have three 1/4"-20 thread sockets and one 3/8"-16 thread socket,you can DIY mount monitors and led lights,and other camera accessories you want on it;the double ball adapter can be 360 degree swivel Articulation,can mount monitors and led lights.</p> <p>Package include:</p> <p>1 x super clamp</p> <p>1 x double ball head mount</p>