This year's calendar is bursting with holiday fun and features 24 special surprises just waiting to be discovered. Each day, kids can reveal fun LEGO gifts, including Santa and Mrs. Claus minifigures, characters dressed in polar bear, reindeer and holiday tree costumes, plus accessories and mini builds that spark creative pretend play. Each surprise comes with simple building instructions printed right inside the calendar window, making it perfect for new builders and little LEGO fans. Young builders can fold out a playmat attached to their calendar to reveal a Christmas party scene that forms the perfect backdrop for dreaming up seasonal stories using the toys kids uncover each day. This advent calendar makes a wonderful Christmas or holiday gift for kids who love building challenges, creative storytelling, and the bustling world of LEGO City. For year-round fun, this set can be combined with other buildable toys, accessories and minifigures in the LEGO City series (sold separately). Contains 186 pieces.