The FA-HSA Hot Shoe Adapter with SNAP QR Base from Really Right Stuff is designed to work with industry-standard cold and hot shoes, which it enables to adapt photo and video accessories to the top of your camera or video rig. The 1/4"-20 male stud is also removable from the top of the hot shoe adapter, which reveals a 1/4"-20 female thread.
The SNAP QR Base has a 1/4"-20 threaded female socket that will screw onto the top of the hot shoe adapter, which is part of the SNAP QR system and accepting of all SNAP QR adapters. Meanwhile, by screwing the QR adapter on the bottom of smaller video and photographic accessories makes it quick to interchange with the quick release latch. The two-part system consisting of the base and the adapter never twist while an accessory is in use.