Specifications:This plate uses aviation aluminum, CNC precision machining, anodized surface, a rugged split design, and features all stainless steel camera screws.It has a lightweight hollow design, and the 1/4 screw for fixing the camera can be tightened with tools or coins, and an extra 1/4 screw hole is added to the side vertical clapper for easy installation.After the camera is installed on the quick release plate, it will not affect the opening of the data compartment door and the plugging and unplugging of the shutter cable and the microphone cable. It adopts 39mm standard AS interface, in addition to supporting IS-QJ64/JZ50 and IS-QJ58 ultra-thin pan/tilt, it is also compatible with RRS/ARCA-SWISS/KIRK/Wimberley/MARKINS/SUNWAYFOTO/kangrinpoche/BENRO/SIRUIAS standard port head. Item Name: Quick Release PlateMaterial: Aluminum AlloyApplicable Model: for Sony A7M2/A7R2/A7S2 Micro SLR CameraMounting Thread: Inch 1/4Features: Durable, Adjustable, Easy to InstallSize: 137mm x 57mm x 72mm/5.39inch; x 2.24inch; x 2.83inch; (Approx.) Notes:Due to the light and screen setting difference, the item 39;s color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement. Package Includes:1 x Quick Release Plate1 x Inner Hexagon Wrench