Please note that besides the different sizes you can choose between a "Framed" Canvas and a "No Frame" Canvas.
Framed: The canvas is framed with a wooden frame and ready to be hanged on the wall. This is what you see on the product pictures. Easiest option!
No Frame: Picture printed on canvas without the wooden frame. There are white borders around the edges so you can frame it yourself before you hang it. If you don't want to frame it you can cut off the extra material. Cheapest option!