Big Challenge Christmas Gifts: This Advent Calendar for Kids and Teens includes 12 metal wire puzzles, 12 mini cube brain teaser puzzles of diffrent difficulty, so this Christmas toy gift is perfect for girls, boys, children, adults, teens. The gift box does not need to be packaged when giving gifts, which is convenient and beautiful. 2022 Advent Calendar: It is a good way to make exciting kids calm down during countdown to Christmas with this 24 days brain teaser puzzles Christmas Countdown Calendar, to enjoy an unforgettable and meaningful Christmas. This Christmas gift box is designed to keep the gift intact so that when kids open, they will surprised and feel happy. Logical Training & Creativity: When you play those brain teaser puzzles, you will use creativity and focus, while bringing hours of fun in a race to solve more problems, therefore, it will help you to develop a good habit of independent thinking and hands-on problem solving in you study and daily life. Safe Materials: 24 different styles of brain teaser puzzles are made of high quality metal and plastic, not easy to bend or break, smooth without burrs, safe and comfortable fo kids to operate. Puzzles are suitable for all ages. Family & Family Joy: You can share the Christmas calendar 2022 with friends or family to solve puzzles together and enjoy fun game time, and after taking it apart, you can put it back together. This Christmas toy gift is perfect for girls, boys, children, adults, teens.