Advent Calendar 2025: This advent calendar contains 24 different metal puzzles, offering a daily surprise to celebrate the arrival of Christmas. From December 1st to December 24th, children open the windows and take out the puzzle pieces, each window hiding a different surprise. Ideal advent calendar for children and adults, make every day full of anticipation Double Challenge: The metal puzzles offer two ways to play - disassembly and reverse assembly. Brain games suitable for people of all ages and skill levels, perfect for a fun challenge with family or friends, competing to see who can solve the most problems and providing hours of fun Sturdy and Durable Material: Made of high quality metal without sharp edges, ensuring durability and safety. Develop your mind and patience with these puzzles. Perfect Christmas Gift: A special gift for boys, girls, teenagers and adults. Share the joy of the holidays with this puzzle game. 24 Days Countdown: Enjoy 24 days of surprises with this advent calendar. The solutions are hidden in the gift box, adding more fun and surprise to your Christmas.