Ex-Pro® 15mm Rod Clamp Rail Block with 1/4" Mount thread - Mount lighting, Mic's, Other Camera's, Video Cameras and more to your Rail ring. This Clamp mounts to a 15mm Rail rod system producing a 1/4" thread Mount. High quality machined CNC aluminium (Solid) with black anodised finish. The wing nut is anodised aluminium finish (Sold CNC Aluminium also) giving a nice finish to the accessory. The body also has a 1/4" Female thread to allow mounting to any 1/4" thread, a quick release plate or light stand with 1/4" thread offering further versatility. What's in the box ? Ex-Pro® 15mm Rod Clamp Rail Block with 1/4" Mount thread.