Great combination of L-type and T-type speedlite mounts and improved from them No pre-assembly & post-disassembly. Smaller size, lighter weight, less space occupied Unique speedlite mounting method: the speedlite can be clamped firmly into the mount both horizontally and vertically Reliable mounting: firm clamp between 2 pieces of soft plastic, no pressure nor metal scratch to your speedlite Bowens mount design facilitates most studio flash accessories, e.g. softboxes, reflectors, beauty dishes, etc