Roadworx CineClamp; black universal clip; suitable for mounting on round and square pipes, as well as on other flat objects; Surface: black powder-Coated; Admission adjustment range 13 - 55 mm; Hexagonal 5/8 ""socket, as well as M6 and 2 x M5 threads to accommodate Roadworks CineAdapters, maximum load capacity: 15 kg, (CineAdapter mounting bolts are sold separately)