Features: 1. Carefully designed to meet professional photography needs. 2. The dovetail plate is made of high-quality aluminum alloy, and the multiple hollows on the plate reduce the overall weight of the dovetail plate to the greatest extent. 3. Rich expansion capabilities, stylish and durable design. 4. Multiple screw holes on the dovetail plate allow for wide compatibility and can be used to directly connect tripods and other equipment. Screw threads in the holes enhance durability. The black finish is sleek and elegant. 5. Compatible with BMPCC4K, BMPCC6K, A7S3, and similar camera models. Type: Camera Cage Base Size: Approximately 57.5 x 203.2mm Material: Aluminum alloy Color: Black Package Contents: 1 x Camera Cage Base Note: Other items not included. Note: Light reflection and different displays may cause slight color variations between the image and the actual item. Measurement error allowance is +/- 1-3cm. Note: Product appearance, color, and printed markings may vary slightly between batches, but this does not affect functionality.