1, Aluminum Alloy: Made of high quality aluminum alloy, the adapter ring is and has long service life. 2, Easy to Install and Remove: The adapter ring is easy to install and disassemble, very convenient to use. 3, Small and Portable: Small in size and light in weight, the adapter ring is easy to carry around. 4, High Performance: With fine workmanship, excellent performance and strong practicability, the adapter ring has high reliability. 5, Applicable Models: The standard for Profoto mount and for Bowens mount are highly versatile, and are suitable for professional photography lights and photography light softboxes.