The release plate was originally designed for connecting to magic arm, splitter, LED, flash and LCD screen. It provides a protective mechanism for your screen. You can easily screw the LCD screen onto the friction hinge arm. It uses 1/4 inch screws to allow you to connect your arm, splitter, LED, flash, LCD screen to your equipment in different ways. The durable panels are fixed by high-quality aluminum alloy. Material: Aluminum Alloy Item Size: 5 x 3 x 1.8CM Weight: 47g / 1.6oz/Pcs Color: Black Package Contents: 2 * Tray 2 * Wrench Only the above package content, other products are not included. Note: Light shooting 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 +/- 1-3 cm.