5 Pack Standard 1/4"-20 Male to 1/4"-20 Male Threaded Tripod Screw Adapter Mounting Converter for Camera Cage Shoulder Rig Tripod Monopod -Suitable for all kinds of camera gears with 1/4"screw thread hole. -Widely using on camera cage, shoulder rig, tripod, socket studio, lighting equipment, LED panel, Gopro. -Precision made 1/ 4 inch to 1/ 4 inch male to male screw adapter, easy to use -The length is 20 mm, and the width is 16 mm -Made of metal, color is silvery.