Most TV lighting instruments have a hole in the yoke for the mounting of a C-Clamp. When one of these fixtures needs to be mounted on a stand, the TVMP Adapter makes this easy. With an external diameter to fit into a Junior receiver, and a 5/8 ft. female bore for mounting on a Baby pin, the threaded 1/2 ft.-13 top attaches right to the lamp yoke. The Matthews TVMP Snap-in 429493 works with all Matthews Mafer Clamps.