Our Advent Calendars Jigsaw Puzzle contain high quality recyclable cardboard. It can make the entire Christmas month full of anticipation, let people feel the full Christmas atmosphere, frame and hang the puzzle on the wall to decorate your home. Its use is simple: Open a box corresponding to the date every day between December 1st and December 25th. Take out the puzzle pieces in the box and assemble them. Wait until Christmas Eve to complete the complete puzzle. Enhance Christmas cheer and bring a better holiday atmosphere.