I bought this plate in 2018 and thought I had already reviewed it. It came backed with white plastic which means no cuts from sharp edges, also protected by a blue sticker. It may have also came in a cardboard slip but I forgot as it was three years since I bought it.
It is rectangle and designed for longer nails which works well for me. I have found all of the images stamped across well in the various nail art I've done with the plate.