Samyo Q Type Multifunctional Clip for Flashlight Speedlite, Battery Pack, Photo Studio Lights Designed for hanging battery pack, installing different flashes, etc. Adjustable range up to 45mm. Two 1/4" and One 3/8" bracket mounting holes to adjust light ankles flexibly. Quickly fix the clip by the screw. Material: Aluminium & PVC & iron. Come with one 1/4" & 3/8" Screw.