Metal frame No fear of harsh environment The frame of the mobile phone cage is made of high-strength Metal processing to provide armor protection for mobile phones during high-intensity outdoor . Soft silicone edge Provide double protection The inside of the metal frame is wrapped with soft silicone to give the phone frame Provide protection to prevent the phone from rubbing against metal and causing scratches, and also provide cushioning when the phone falls. The mobile phone cage is designed with a standard 1/4 thread interface, cold shoe interface and for quick release interface, which can be equipped with various professional photography accessories and has powerful expansion performance. Removable back panel Can be installed with filters and lenses The cage has a replaceable back panel design, which can be replaced according to needs Use the corresponding backplate to install the lens or filter. has a wide variety of 17mm threaded mount mobile phone lenses Paired with the for 's powerful main camera, you can create endless possibilities. name:Cell phone metal cage 1/4 threaded holes:9 Cold shoe quantity:2 Mobile phone lens support:17mm threaded port, Moment TO Filter support:67mm diameter filter (The product printed words depending on the batch, but this does not affect use) Applies to:B:For 17 Pro Max Colour:As Shown Material:Metal Package Contents: 1 x Cell phone metal cage 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.