This 15mm Single Rod Holder mounts along the the top of Tiltaing half and full camera cages. It allows you to secure a single 15mm rod on the top of your camera length wise for attaching rod based accessories like Electronic Viewfinders (EVFs). The design of this Rod Holder makes it one of the best lightweight options for attaching a 15mm rod horizontally to your system. This makes it the perfect solution for mounting EVFs on camera systems without native EVF support.