Feature:1. Application: Compatible with lens plate button head, for arca style button head, ideal for use on tripods, monopods, also support for DSLR SLR cameras.2. Characteristic: Professional manufacturing, this is a 1/4in female to 3/8in male thread adapter, practical converter adapter, high quality and reliable.3. Premium Material: Convert screw adapter is made of copper material, strong and durable, not easy to rust, can be used in acid, alkali and humid environments.4. Anodizing Treatment: The is anodized, and flat, the thread is clear, the force is even, and it is not easy to slip during use.5. Easy Operation: One side of the convert screw thread adapter is designed with an open for convenient manual assembly and disassembly.Specification:Item Type: Convert Screw AdapterMaterial: CopperApplication: Compatible with Lens Plate Button Head, for Arca Style Button HeadPackage List:5 xConvert Screw Adapter