24 In 4 Building Stem Toys: This innovative set includes 6 building blocks in each series that can be combined to create a stunning Christmas architecture. Each Christmas Advent Calendar can be assembled into 4 large building blocks, encouraging creativity and imagination as you construct your festive masterpiece. Unforgettable Christmas Gift: Our Christmas Advent Calendar 2023 Toys for Kids make for unique and exciting Christmas gifts that enhance holiday anticipation. With 28 different display methods, you can use the 24 small blocks to create your own Christmas family or assemble them into 4 large blocks for a grand display. Exciting Advent Calendar Puzzles: Experience the joy of Christmas with our unique building blocks! Open a door each day leading up to Christmas, and complete the final piece on Christmas Eve. Assemble the building blocks to create your very own Christmas courtyard, making each day a delightful surprise. Durability & Safety: Each building block in our Christmas Advent Calendar is crafted from eco-friendly PVC plastic materials, ensuring durability and sturdiness. They are carefully machined and polished, free from burrs and fading, making them safe for children. Each toy is individually packaged and includes clear instructions, meeting US toy safety standards. Delightful Gift Idea for All Ages: Our Christmas Advent Calendar 2023 is perfect for everyone, not just kids! Adults can also join in the festive fun and enjoy the spirit of the season.