This is SmallRig Half Cage 3639. I used it with my α7sⅢ, but I'm selling it because I bought a full cage. According to the product page, it seems to be compatible with α7 IV / Alpha 7S III / Alpha 1 / Alpha 7R IV. There are no major scratches, but the screw driver that was attached to the bottom of the cage is missing and is not included. Because it's an Arca-Swiss compatible cage, it can be attached directly to an Arca-Swiss head or the plate of my DJI Ronin RS2 gimbal. *Please refrain from purchasing if you are nervous about used items. *Returns are not accepted after arrival to prevent things like content substitution. *No price reductions. I may lower the price depending on the situation. *No dedicated listings. *I will prioritize the person who purchases, even if there are inquiries. - Brand: SmallRig - Material: Aluminum - Type: Camera Cage - Compatibility: For cameras - Screw holes: 1/4 inch screw holes - Design: Lightweight and compact - Color: Black Thank you for viewing.