All metal construction, the main part is made of lightweight aircraft-grade aluminium material, CNC processing, hard-anodized anti-oxidation treatment with the surface.
It built-in a bubble level, ensure the photography precisely in horizontal orientation.
It is can connect with your flash, easy for shooting.
The screw-knob, that can stop at maximum opening.
It is compatible with any Arca style plate, such as RRS, Arca-Swiss, KIRK, Wimberley, Markins, Sunwayfoto, Kangrinpoche, Benro, Sirui etc.