It's a jet-black jigsaw puzzle. It's extremely difficult, but it's manageable because it comes with a backing board. Despite being from Daiso, it's high quality! The pieces fit together perfectly, which is satisfying! Since all the pieces have different shapes, you could even try it without the backing board. I've only played with it once. It took me three whole days. There are quite a few initial scratches, but they shouldn't interfere with playing. Daiso Black Puzzle Black Pazzle Dark Hell Type...Jigsaw Puzzle Number of Pieces...1000 pieces - 1999 pieces