The polymer jigsaw puzzle is a fun toy for any person from kids to adults. The puzzles are sublimation printable on both sides, if you have the Vaccumsub® 3D system you can even print on the edge to make it a beautiful piece of gift or toy. There is no sublimation coating on the surface of this jigsaw puzzle so you don't have to worry about scratching off the images while playing - the images are dye-sublimation directly in to the polymer material. Plus 2 sides with different images will definitely increase difficulty and interests while you want to finish it.