Features: 1. Carefully Designed To Meet Professional Photography Needs 2. The Dovetail Plate Is Made Of Aluminum alloy, And The Multiple Hollow On The Plate Reduce The Overall Weight Of The Dovetail Plate To The Greatest Extent. 3. Rich Expansion, Beautiful And , 4. The Multiple Screw Holes On The Dovetail Plate Are Widely Expanded And Can Be Used To Directly Connect Tripods And Other Equipment. There Are Screw Threads In The Screw Holes To Improve Durability; The Black Appearance Is Dignified And Elegant. 5. Suitable For BMPCC4K6K/A7S3JTZ Iron Cage Base Type: Camera Cage Base Note: Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The Use size: B-About 67 x 255mm Material: Aluminum alloy colour: Black Package Contents: 1 x Camera Cage Base 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.