Features:The adapter screw is designed with both ends of 1/4".Made of aluminum alloy material?? and silver plated surface.You can use them for small led lights?? needed for holding anything and everything around your cameras.Suitable for all kinds gears with 1/4" or 1/4" screw hole. Perfect for any photographer that has lots of unique camera mounts and different accessories and no easy way to mount stuff.Specifications:Materiel: Aluminum alloyColor: SliverSize: 2 * 1.6cm / 0.79 * 0.63inchWeight: 9g / 0.33ozPackage List:1 * 1/4"-1/4" Metal Adapter Screw