2 Pack(4Pcs) Camera 1/4" Male to 1/4" Male Screw and 1/4" Male to 3/8" Male Threaded Screw Adapter for Camera Cage/Shoulder Rig/Tripod/Socket Studio/Lighting Equipment 1, Camera tripod screw adapter, 1/4" to 1/4", 1/4" to 3/8"; 2, Perfect for putting two photo equipment devices together; 3, Standard size, Easy to use by hand on camera accessories such as Tripod, Monopod, Ballhead, light stand, Video light; 4, Made of metal material, and silver plated surface; 5, Package: 2 x 1/4"-1/4"; 2 x 1/4" - 3/8".