Enjoy completing a new puzzle every day with our Metal Jigsaw Puzzle Advent Calendar. Solve fun brain teasers that give you a sense of accomplishment and relaxation. This advent calendar is made of metal, making it durable and not prone to bending or breaking. Jigsaw puzzles are and- provide safety and experience for you and your family. Advent calendars are a great way to help promote early learning, practice concentration, thinking, and stimulate the mind. It is a challenging activity for children and adults alike. This gift is perfect for school, parties, or home for kids, boys, girls, teens, or adults. Discover new problem-solving skills in yourself every day. Give a memorable Christmas gift that the whole family will be excited about. Use the Christmas holidays to complete these challenges. 24 windows display 24 metal puzzle advent calendars. Each puzzle is made of metal and has a different shape and difficulty level. You can enjoy putting them together with your family or solve them on your own. Warning: Caution! Choking Hazard - Small details.