StudioPRO Hot Shoe Adapter Speedlight Flash Mount for Photography (1) Hot Shoe Adapter Adjustable 1/4-20 screw included StudioPRO adjustable hot shoe mount can be used to connect a third party flash via standard hot shoe or PC sync cord socket. 0.5 spacer with 1/4-20 threaded socket Best Photo Uses: on location shoots, photography studio, wedding photography, and more!