Vello Universal Accessory Shoe Mount With 1/4" Screw and Knob Cold Shoe Accessory Mount | Accepts Standard Shoe-Mount Devices Includes 1/4" Screw, Low-Profile Knob |1/4"-20 Threaded Bottom Mount Spring-Tensioned Adjustment Screw | Lightweight Aluminum Construction Semi-Matte Black Anodized Finish Whats In The Box: Screw With Knob Handle (1/4"), 1-Year Warranty Against Manufacturer Defects