Precision metal screws, silver plated, standard tripod mounting thread Help you connect rigs of screw thread within minutes; Can connect tripod, shoulder rig, lightstand, micro-film equipment, camera cage and others Help you gain more rig combination possibility and freedom in your photo .diameter:0.62 inch/16 mm; . length: 0.78 inch/20 mm; , easy to carry and use, they can even as back up for the counterpart in your rigs in both versatility and functionality These 5 pieces screw adapter are made of metal with sturdy construction; There is in both versatility and functionality. Style:1/4 inch Male to 1/4 inch Male colour:Silver Material:Metal Package Contents: 5 * Screw Adapter Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.