31 In 5 Building Stem Toys31 building blocks each series can combined into a big Halloween architecture. Each Halloween arrival calendar can be assembled into 5 large building blocks, which requires your imagination to assemble into large building blocks, making it more interesting. our arrival calendar can help develop children's intelligence, cultivate hands-on ability, and enhance parent-child relationship.Durability & SafetyAll building blocks inside the Halloween advent calendar is made of eco-friendly PVC plastic materials, durable and sturdy, carefully machined and polished, no burrs, no fading, safe for children. Each building toy is individually packaged and includes an instruction. Meet US toys standard.Unforgettable Halloween Gift Our Halloween Advent Calendar 2025 Toys for Kids are unique Halloween gifts to boost their holiday expectations. There are 31 different display methods, you can use your 31 small blocks to form your Halloween family, or you can use the 31 small blocks to form 5 large blocks. Not just a fun toy, but also a great Halloween decoration itemExciting Advent Calendar PuzzlesUnwrap the joy of Halloween with our unique building blocks! From the first door, Halloween is here when you opens 31 doors. Complete the final piece on Halloween Eve, and finally match the building blocks in front to create your own Halloween courtyard. This Halloween Advent Calendar will taking you into the wonderful world of surprise toys hidden behind 31 doors!Delightful Gift Idea for All Ages Our Halloween Advent Calendar 2025 is not just for kids - adults can also relish in the festive spirit and join in the fun. Display it as a centerpiece in your home or workplace and let the cute Halloween building blocks captivate everyone's attention. Whether you're surprising your loved ones or treating yourself, this Advent Calendar is the perfect gift idea for all ages.