I was very happy to have these big laminated prints produced. They are printed on paper with pigment ink. It can be used outdoors without fading.
They measure 12 x 18"/30 x 46cm. But I added one cm on both side for framing. Thus the actual prints are 31 x 47cm.
The surface is laminated and they are protected against dirty or finger prints.
These prints means to be framed. If you like to have some prints that can be mounted on hard board, you can try the Large Laminated Prints (LLP). They have sticky side that can be mounted on a board to hang.