Features: 1. for Action 3/4 Cage, Expand More Possibilities 2. A Variety Of Expansion Interfaces, Horizontal And Vertical , Fast Switching, Fast Portable Disassembly, All-Round Protection 3. Effectively Compatible, Does Not Block The Interface 4. Side Clamshell Design, Easy To Disassemble And Assemble 5. Adsorption In One Second, Removal In Seconds Description: Product Name: Camera Protective Frame Compatible Products: for ACTION 3/4 size: about 8.4 x 3.3 x 5.2cm Material: aluminum alloy colour: matte black Package Contents: 1 x Camera Protection Frame 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.