Features Designed for Quantum Trio Flashes, Adapts Flash for Use with Light Stands, Fits on Tripods and Monopods, 1/4"-20 Threaded Bottom-Mount. By using this adapter you can detach your speedlight from the camera and change the position of your light source with ease. It offers a standard 1/4-20 threaded mount that fastens onto any same-sized screw. A knurled knob helps ensure your flash stays safely connected.