version Single rod clamp w/ Four female 1/4" thread for 15mm rod on DSLR Rig. * Made of Aluminum Alloy,black anodized. * You can install an Articulating Arm on the female 1/4" thread, and install a monitor or a LED on the articulating arm. * Included Content: ONLY one 15mm Rod Clamp. * Net weight only 40g/pcs.