This is a 10x20" small poster of the original, packed flat with a supportive foam core backing in a clear sleeve. I have a small and medium size poster (10x20, 12x24) and will soon have a full size poster in the next print run (18x36). For more information on the creation of this piece, see the listing of the original here: https://jenniferbrewerstone.com/collections/new-arrivals/products/jellyfish-rising