The amazing benefits of the Custom Bracket"s Digital PRO-E Kit include its professional -looking design, its easy rotation function that utilizes roller bearings from horizontal to vertical and its construction with anodized black aluminum for lightweight strength. There is no lubrication needed with The Digital PRO-E Kit. It is designed to be maintenance free. It features optimal flash height for eliminating red eye and shadows and a comfortable foam grip on left side. It also fits in camera bags with compact design. The Digital PRO-E Kit also includes a palm grip for comfort and support while holding the bracket and zooming. It is Custom Brackets" lightest and simplest bracket weighing slightly over 1 pound. **Not recommended for use with Canon Speedlite Transmitter ST-E2, or Metz 54, 70, and 76 (Grip on bracket will block the infrared signal). We suggest the Digital PRO for the use with these products. Specifications Weight: 17 oz. (482 g) Bracket Dimensions: 10-7/8” high, 7-3/8” wide, 2-3/4” deep Metric Dimensions: 27.6cm high, 18.7cm wide, 7.0cm deep Center of lens to bottom of flash: 11” (28cm) 1/4-20 threaded hole for mounting bracket to tripod