Out of Box item, may require some assembly. See link for more details:

Note: Best comparable link, this frame is 16x16 matted to 12x12, has small scratches to glass, see photos

https://www.target.com/p/16-34-x-16-34-matted-to-12-34-x-12-34-elevated-aluminum-poster-frame-black-threshold-8482/-/A-86325314