Compatibility: for A9 III/A1 II Camera Interfaces: 1/4inchThread Hole, 3/8inch Thread Hole, Locating Hole, Cold Shoe Mount, Left Side Integrated Rail, Anti-twist Protrudes and Anti-slip anti-scratch Silicone Cushions, Bottom Battery Compartment Skeleton Design, Bottom Standard for Style Quick Release Plate, Bottom for Series Gimbals Quick Release Interface, Bottom Built-in Magnetic Flat- Screwdriver etc. The cage doens't block the camera folding screen and normal use of any camera interfaces. Bottom Battery Compartment Skeleton Design Makes Battery Access Easier. Bottom Standard for Style Quick Release Plate Supports Handheld, Tripod and for Series Gimbals Fast Switching. Bottom for Series Gimbals Quick Release Interface can be Attached to Series Gimbals Directly without Mounting the Gimbals' Small Arca Plate. Locking Method: Two-way, Bottom 1/4inch Screw+Side Locking Attachment. Colour:Black Material:Aluminum Alloy Package Contents: 1 x cage for A9III Only the above package content, other products are not included. Note: Light reflection 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.