This set of six each Light Stand Spigot Adapters, Screw Adapters & Thread Converter Rings from ProAm USA is compatible with a wide variety of cameras and components. The set includes six aluminum alloy 1/4"-20 female to 3/8"-16 female light stand spigot adapters and six plated steel 1/4"-20 male to 1/4"-20 male screw adapters. Also included are six plated steel 1/4"-20 to 3/8"-16 thread converter rings.