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Amazon.com : Neewer 2 Pieces Standard 1/4 to 3/8 inch Metal Male Convertor Threaded Screw Adapter Spigot Stud for Studio Light Stand, Hotshoe/Coldshoe Adapter, Ball Head, Wireless Flash Receiver, Trigger : Electronics
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GoolRC 1/4"-20 to 3/8"-16 Threaded Screw Adapter Converter Female Spigot Reducer Bushing Screw Mount Set for Camera Tripod Monopod Ballhead Flash Light Stand Shoulder Rig - Walmart.com
![Amazon.com : 2 Pieces Standard 1/4 to 3/8 inch Metal Male Convertor Threaded Screw Adapter Spigot Stud for Studio Light Stand, Hotshoe/Coldshoe Adapter, Ball Head, Wireless Flash Receiver, Trigger : Electronics Amazon.com : 2 Pieces Standard 1/4 to 3/8 inch Metal Male Convertor Threaded Screw Adapter Spigot Stud for Studio Light Stand, Hotshoe/Coldshoe Adapter, Ball Head, Wireless Flash Receiver, Trigger : Electronics](https://m.media-amazon.com/images/I/41LvBO1X-RL._AC_SY1000_.jpg)