Hot Shoe Mount Flash Bracket/Photo Umbrella Holder Support for Canon Nikon Pentax Olympus Metz Speedlite Flash&Trigger Portable, about 9x4x3cm (H x W x D); light weight, about 80g ISO518 copper hot shoe mount design, with locking hole Umbrella hole diameter about 10mm, knob made of ABS material, wheel gear design,support for most of studio umbrellas Bottom hole diameter about 15.8mm, support for most of studio light stands Package Includes: 1 x Mini Flash Bracket IS-GII with Metal Hot Shoe Mount(The other items in the photos not listed here are for illustrating only, not included)