1. It can be applied to all types of flash. After the flash is connected, it can be directly connected to any lamp holder, which is convenient for photographers to use the flash for multi-directional light supplement when shooting outside. 2. Tighten the screws where the flash is connected to prevent the unstable connection between the flash and the lamp holder. Safety factor increased. 3. The lamp holder is provided with a jack for inserting a reflective umbrella or a soft light umbrella, and the Angle of the flash can be adjusted 180 degrees.

http://olla.gr/double-hot-shoe-flash-stand-bracket/