Simply Hang it helps you hang it right every time! Just apply Simply Hang it to the back of the frame and move it around until you find the right spot.
Once you know where the picture goes, the rest is easy, just press Simply Hang it to the wall and remove the frame, leaving Simply Hang it in the wall marking the exact spot for the nail.
Don't have time to nail it now? No problem... if you need to you can write on Simply Hang it and come back later without having to search for the little mark on the wall!