Universal security rail clamp design allows for quick mounting of another device via another clamp without the need to remove the previous clamp. Features 1/4 and 3/8 threads for accessories like the , so you can mount a monitor or side handle for easier attachment. You can also install microphones, lights and sound receivers with cold shoe mounts. Mounts to a cold shoe, camera cage, or standard rail and connects a video monitor, microphone, video LED light, or wireless receiver via an articulated , monitor support ball head, and more. For RS2 RSC2 RS3 Pro RS3 Due to different product batches, there may be slight differences in appearance, which not affect the use Colour:Black Material:Aluminum alloy Package Contents: 2x Vertical components Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.