1. Portable, about 9x4x3cm (H x W x D); light weight, about 80g; 2. ISO518 copper hot shoe mount design, with locking hole, compatible with Standard cold foot; 3. Umbrella hole diameter about 10mm, knob made of ABS material, wheel gear design,support for most of studio umbrellas; 4. 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)