SUPON 3-section U-shape Type Swivel Flash Bracket for Umbrella Holder Light Stand Adapter Nikon and Canon Speedlight he holder has two reserved interface at the top and bottom, and the interface is designed with mandrel hole which can be installed horizontally or vertically to such light stands and adapter screws of the diameter less than 15mm; Supports umbrellas of shaft diameter less than 10mm, with independent locking screw; Using large handle of 70mm, clamp-type locking design, with the advantage of energy saving and large bearing capacity.