Thank you for viewing! This product is a FOMITO camera holster. It's designed to attach a camera to the shoulder strap of a backpack, etc. The included items are the main body, quick shoe, and two spare screws, as shown in the photos. It's Arca-Swiss compatible and supports quick shoes. It's a product similar to Peak Design's Capture! I purchased it new about two years ago and used it several times for hiking, but it didn't suit my style, so I'm selling it. I used it with a mirrorless Sony a7Ⅲ and a7c! Please note that there are some minor scratches and scuffs from use. I also have other camera equipment for sale, so please take a look if you're interested! Please also see my profile for details on purchasing and shipping methods. If you have any questions, please feel free to comment! Thank you.